APA (7th ed.) Citation

Sullivan, A. L., & Shaffer, M. L. (1975). Biogeography of the megazoo. Science, 189, 13.

Chicago Style (17th ed.) Citation

Sullivan, A. L., and M. L. Shaffer. "Biogeography of the Megazoo." Science 189 (1975): 13.

MLA (9th ed.) Citation

Sullivan, A. L., and M. L. Shaffer. "Biogeography of the Megazoo." Science, vol. 189, 1975, p. 13.

Warning: These citations may not always be 100% accurate.