Storer, T. I., & Usinger, R. L. (1957). General zoology (3d ed.). McGraw-Hill.
Cita Chicago (17th ed.)Storer, Tracy I., i Robert L. Usinger. General Zoology. 3d ed. New York: McGraw-Hill, 1957.
Cita MLA (8th ed.)Storer, Tracy I., i Robert L. Usinger. General Zoology. 3d ed. McGraw-Hill, 1957.
Atenció: Aquestes cites poden no estar 100% correctes.