APA استشهاد

Helfman, G. S. C. (2009). Diversity of fishes: Biology, Evolution, and ecology.

استشهاد بنمط شيكاغو

Helfman, Gene S; Collette. Diversity of Fishes: Biology, Evolution, and Ecology. Wiley-Blackwell, London, 2009.

MLA استشهاد

Helfman, Gene S; Collette. Diversity of Fishes: Biology, Evolution, and Ecology. 2009.