Cita APA (7th ed.)

Central Office of Information. (1974). Britain 1974: An official handbook. COI.

Cita Chicago (17th ed.)

Central Office of Information. Britain 1974: An Official Handbook. Londres: COI, 1974.

Cita MLA (9th ed.)

Central Office of Information. Britain 1974: An Official Handbook. COI, 1974.