D & B regional business directories.
Dun & Bradstreet International.
High Wycombe : Dun & Bradstreet,
1995.
At head of title: Dun & Bradstreet International.
D & B regional directories. Central England : south
D & B business register. Bedfordshire, Hertfordshire
D & B business register. Leicestershire, Northamptonshire, Cambridgeshire
D & B business register. Middlesex, Buckinghamshire
D & B business register. Oxfordshire, Berkshire, Wiltshire