Gaya APA

Der, S, V., Pierrot-Bults, A, C. (1979). Zoogeography and Diversity in Plankton . New York: Halsted Press.

Gaya MLA

Der, Spoel,S, Van., Pierrot-Bults, A, C,. "Zoogeography and Diversity in Plankton". New York: Halsted Press, 1979. Text.