APA (7th ed.) Citation

Norman, J. R. (1951). A history of fishes (4a. ed.). Ernest Benn.

Chicago Style (17th ed.) Citation

Norman, J. R. A History of Fishes. 4a. ed. Nueva York: Ernest Benn, 1951.

MLA (9th ed.) Citation

Norman, J. R. A History of Fishes. 4a. ed. Ernest Benn, 1951.