APA (7th ed.) Citation

Buchsbaum, R. M. (1976). Animals without backbones: An introduction to the invertebrates (2nd ed.). The University of Chicago.

Chicago Style (17th ed.) Citation

Buchsbaum, Ralph Morris. Animals Without Backbones: An Introduction to the Invertebrates. 2nd ed. Chicago: The University of Chicago, 1976.

MLA (9th ed.) Citation

Buchsbaum, Ralph Morris. Animals Without Backbones: An Introduction to the Invertebrates. 2nd ed. The University of Chicago, 1976.