Dyfyniad APA

Pechenik, J. A., & 1963- 1945- 1955-. (2010). Biology of the invertebrates (6th ed.). New York, NY: McGraw-Hill Higher Education.

Dyfyniad Arddull Chicago

Pechenik, Jan A., và 1963- 1945- 1955-. Biology of the Invertebrates. 6th ed. New York, NY: McGraw-Hill Higher Education, 2010.

Dyfyniad MLA

Pechenik, Jan A., và 1963- 1945- 1955-. Biology of the Invertebrates. 6th ed. New York, NY: McGraw-Hill Higher Education, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.