Cita APA (7a ed.)

Sumich, J. L. (1999). An introduction to the biology of marine life (7th ed.). WCB McGraw-Hill.

Cita Chicago Style (17a ed.)

Sumich, James L. An Introduction to the Biology of Marine Life. 7th ed. Boston, Mass: WCB McGraw-Hill, 1999.

Cita MLA (9a ed.)

Sumich, James L. An Introduction to the Biology of Marine Life. 7th ed. WCB McGraw-Hill, 1999.