APA (7th ed.) Citation

Central Office of Information in London. (1979). Britain 1979: An official handbook. Central Office Information.

Chicago Style (17th ed.) Citation

Central Office of Information in London. Britain 1979: An Official Handbook. London: Central Office Information, 1979.

MLA (9th ed.) Citation

Central Office of Information in London. Britain 1979: An Official Handbook. Central Office Information, 1979.