Cita APA (7a ed.)

Buchsbaum, R. M., Buchsbaum, M., Pearse, J., & Pearse, V. (1987). ANIMALS without backbones (3rd ed.). The University of Chicago Press.

Cita Chicago Style (17a ed.)

Buchsbaum, Ralph Morris, Mildred Buchsbaum, John Pearse, y Vicki Pearse. ANIMALS Without Backbones. 3rd ed. Chicago and London: The University of Chicago Press, 1987.

Cita MLA (8a ed.)

Buchsbaum, Ralph Morris, et al. ANIMALS Without Backbones. 3rd ed. The University of Chicago Press, 1987.