APA (7th ed.) Citation

Sealey, L., & Blackie, J. H. (1974). Macmillan our world encyclopedia. Macmillan Education ltd..

Chicago Style (17th ed.) Citation

Sealey, Leonard, and John Haldane Blackie. Macmillan Our World Encyclopedia. London: Macmillan Education ltd., 1974.

MLA (9th ed.) Citation

Sealey, Leonard, and John Haldane Blackie. Macmillan Our World Encyclopedia. Macmillan Education ltd., 1974.