APA (7th ed.) Citation

Simpson, G. G. (1960). Quantitative zoology (Rev. ed.). Harcourt, Brace.

Chicago Style (17th ed.) Citation

Simpson, George Gaylord. Quantitative Zoology. Rev. ed. New York: Harcourt, Brace, 1960.

MLA (9th ed.) Citation

Simpson, George Gaylord. Quantitative Zoology. Rev. ed. Harcourt, Brace, 1960.