APA استشهاد

Firth, P., & Fisher, S. G. (1991). Global climate change and freshwater ecosystems. Springer-Verlag.

استشهاد بنمط شيكاغو

Firth, Penelope, و Stuart G. Fisher. Global Climate Change and Freshwater Ecosystems. New York: Springer-Verlag, 1991.

MLA استشهاد

Firth, Penelope, و Stuart G. Fisher. Global Climate Change and Freshwater Ecosystems. Springer-Verlag, 1991.