Ordnance Survey : administrative areas and 1974 changes.
Great Britain.Ordnance Survey.
Southampton : Ordnance Survey,
1973.
Relief shown by spot heights.
"Boundaries as at 1st April, 1973"
Includes overprint in green: "Local Government Act 1972, interim map of administrative areas to be operative 1974 with full county and district information ... areas to be effective 1st  April 1974 ...Information as notified to 1-8-73".
Changes affect England only.
Includes indexes and insets.