Cita APA (7th ed.)

Pechenik, J. A. (2005). Biology of the invertebrates (5th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Pechenik, Jan A. Biology of the Invertebrates. 5th ed. Boston: McGraw-Hill, 2005.

Cita MLA (9th ed.)

Pechenik, Jan A. Biology of the Invertebrates. 5th ed. McGraw-Hill, 2005.