Cita APA (7a ed.)

Simpson, G. G. (1961). Principles of animal taxonomy (1st edition.). Columbia University Press.

Cita Chicago Style (17a ed.)

Simpson, George Gaylord. Principles of Animal Taxonomy. 1st edition. [Lugar de publicación no identificado]: Columbia University Press, 1961.

Cita MLA (8a ed.)

Simpson, George Gaylord. Principles of Animal Taxonomy. 1st edition. Columbia University Press, 1961.