Question: The village which was a one of the 14 conservation areas of local government district in Hertfordshire was also mentioned in which book? 

Context articles: Grade II* listed buildings in Taunton Deane
Parks Canada
Aldenham
Grade I listed buildings in West Somerset
Hertsmere
Grade II* listed buildings in West Somerset
Grade II* listed buildings in Sedgemoor
Grade I listed buildings in Taunton Deane
Grade I listed buildings in Sedgemoor
Harlow

Taunton Deane is a local government district with borough status in the English county of Somerset.
 In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical or cultural significance; Grade II* structures are those considered to be "particularly significant buildings of more than local interest".
 Listing was begun by a provision in the Town and Country Planning Act 1947.
 Once listed, severe restrictions are imposed on the modifications allowed to a building's structure or its fittings.
 In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Historic England, a non-departmental public body sponsored by the Department for Culture, Media and Sport; local authorities have a responsibility to regulate and enforce the planning regulations.
Parks Canada (French: "Parcs Canada" ), also known as the Parks Canada Agency (French: "Agence Parcs Canada" ), is an agency of the Government of Canada run by a chief executive who answers to the Minister of the Environment.
 The national park service is mandated to protect and present nationally significant natural and cultural heritage, and foster public understanding, appreciation, and enjoyment in ways that ensure their ecological and commemorative integrity for present and future generations.
 Parks Canada manages 38 National Parks, three National Marine Conservation Areas, 171 National Historic Sites, and one National Landmark.
 The agency also administers lands and waters set aside as potential national parklands, including eight National Park Reserves and one National Marine Conservation Area Reserve.
 More than 407000 km2 of lands and waters in national parks and national marine conservation areas has been set aside for such purposes.
 The Canadian Register of Historic Places is supported and managed by Parks Canada, in collaboration with provincial and territorial governments and other federal bodies.
 The agency is also the working arm of the national Historic Sites and Monuments Board, which recommends National Historic Sites, Events, and Persons.
Aldenham is a village and civil parish in Hertfordshire, 3.5 mi north-east of Watford and 2 mi southwest of Radlett.
 It was mentioned in the Domesday Book and is one of Hertsmere's 14 conservation areas.
 This secluded little village has eight pre-19th century buildings that are listed buildings and the parish itself is largely unchanged, though buildings have been rebuilt, since Saxon times when the majority of the land was owned by the abbots of Westminster Abbey.
West Somerset is a local government district in the English county of Somerset.
 In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical or cultural significance; Grade I structures are those considered to be "buildings of exceptional interest".
 Listing was begun by a provision in the Town and Country Planning Act 1947.
 Once listed, severe restrictions are imposed on the modifications allowed to a building's structure or its fittings.
 In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Historic England, a non-departmental public body sponsored by the Department for Culture, Media and Sport; local authorities have a responsibility to regulate and enforce the planning regulations.
Hertsmere is a local government district and borough in Hertfordshire, England.
 Its council is based in Borehamwood.
 Other towns in the borough include Bushey, Elstree, Radlett and Potters Bar.
West Somerset is a local government district in the English county of Somerset.
 In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical or cultural significance; Grade II* structures are those considered to be "particularly significant buildings of more than local interest".
 Listing was begun by a provision in the Town and Country Planning Act 1947.
 Once listed, severe restrictions are imposed on the modifications allowed to a building's structure or its fittings.
 In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Historic England, a non-departmental public body sponsored by the Department for Culture, Media and Sport; local authorities have a responsibility to regulate and enforce the planning regulations.
Sedgemoor is a local government district in the English county of Somerset.
 In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical or cultural significance; Grade II* structures are those considered to be "particularly significant buildings of more than local interest".
 Listing was begun by a provision in the Town and Country Planning Act 1947.
 Once listed, severe restrictions are imposed on the modifications allowed to a building's structure or its fittings.
 In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Historic England, a non-departmental public body sponsored by the Department for Digital, Culture, Media and Sport; local authorities have a responsibility to regulate and enforce the planning regulations.
Taunton Deane is a local government district with borough status in the English county of Somerset.
 In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical or cultural significance; Grade I structures are those considered to be "buildings of exceptional interest".
 Listing was begun by a provision in the Town and Country Planning Act 1947.
 Once listed, severe restrictions are imposed on the modifications allowed to a building's structure or its fittings.
 In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Historic England, a non-departmental public body sponsored by the Department for Culture, Media and Sport; local authorities have a responsibility to regulate and enforce the planning regulations.
Sedgemoor is a local government district in the English county of Somerset.
 In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical or cultural significance; Grade I structures are those considered to be "buildings of exceptional interest".
 Listing was begun by a provision in the Town and Country Planning Act 1947.
 Once listed, severe restrictions are imposed on the modifications allowed to a building's structure or its fittings.
 In England, the authority for listing under the Planning (Listed Buildings and Conservation Areas) Act 1990 rests with Historic England, a non-departmental public body sponsored by the Department for Culture, Media and Sport; local authorities have a responsibility to regulate and enforce the planning regulations.
Harlow is a former Mark One New Town and local government district in the west of Essex, England.
 Situated on the border with Hertfordshire, it occupies a large area of land on the south bank of the upper Stort Valley, which has been made navigable through other towns and features a canal section near its watermill.
 Old Harlow is a village-size suburb founded by the early medieval age and most of its high street buildings are early Victorian and residential, mostly protected by one of the Conservation Areas in the district.
 In Old Harlow is a field named Harlowbury, a de-settled monastic area which has the remains of a chapel, a scheduled ancient monument.