APA (7th ed.) Citation

Packard, L. O. (1953). Geography of the world (Rev. ed.). Macmillan.

Chicago Style (17th ed.) Citation

Packard, Leonard Oscar. Geography of the World. Rev. ed. New York: Macmillan, 1953.

MLA (9th ed.) Citation

Packard, Leonard Oscar. Geography of the World. Rev. ed. Macmillan, 1953.