APA (7th ed.) Citation

Commonwealth Secretariat. Information Division. (1979). Commonwealth organizations: A handbook of official and unofficial organization... active in the Commonwealth (2nd ed.). Commonwealth Secretariat.

Chicago Style (17th ed.) Citation

Commonwealth Secretariat. Information Division. Commonwealth Organizations: A Handbook of Official and Unofficial Organization... Active in the Commonwealth. 2nd ed. London: Commonwealth Secretariat, 1979.

MLA (9th ed.) Citation

Commonwealth Secretariat. Information Division. Commonwealth Organizations: A Handbook of Official and Unofficial Organization... Active in the Commonwealth. 2nd ed. Commonwealth Secretariat, 1979.