APA (7th ed.) Citation

Simpson, G. G. (1990). Principles of animal taxonomy ([Repr.].). Columbia Univ. Pr.

Chicago Style (17th ed.) Citation

Simpson, George Gaylord. Principles of Animal Taxonomy. [Repr.]. New York: Columbia Univ. Pr, 1990.

MLA (9th ed.) Citation

Simpson, George Gaylord. Principles of Animal Taxonomy. [Repr.]. Columbia Univ. Pr, 1990.

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