APA (7th ed.) Citation

Nikolsky, G. V. (1963). The ecology of fishes. Academic Press.

Chicago Style (17th ed.) Citation

Nikolsky, G. V. The Ecology of Fishes. New York: Academic Press, 1963.

MLA (9th ed.) Citation

Nikolsky, G. V. The Ecology of Fishes. Academic Press, 1963.