APA (7th ed.) Citation

Great Britain. Central Office of Information & British Information Services. (1968). Swaziland. H.M.S.O.

Chicago Style (17th ed.) Citation

Great Britain. Central Office of Information and British Information Services. Swaziland. [London, U.K.]: H.M.S.O, 1968.

MLA (9th ed.) Citation

Great Britain. Central Office of Information and British Information Services. Swaziland. H.M.S.O, 1968.