APA (7th ed.) Citation

Helfman, G. S. (2009). The diversity of fishes: Biology, evolution, and ecology (2nd ed.). Blackwell.

Chicago Style (17th ed.) Citation

Helfman, Gene S. The Diversity of Fishes: Biology, Evolution, and Ecology. 2nd ed. Chichester, UK, Hoboken, NJ: Blackwell, 2009.

MLA (9th ed.) Citation

Helfman, Gene S. The Diversity of Fishes: Biology, Evolution, and Ecology. 2nd ed. Blackwell, 2009.