Cita APA (7a ed.)

Storer, T. I., & Usinger, R. L. (1961). Elements of zoology. McGraw-Hill.

Cita Chicago Style (17a ed.)

Storer, Tracy Irwin, y Robert L. Usinger. Elements of Zoology. New York: McGraw-Hill, 1961.

Cita MLA (9a ed.)

Storer, Tracy Irwin, y Robert L. Usinger. Elements of Zoology. McGraw-Hill, 1961.