APA (7th ed.) Citation

Purchon, R. D. (1977). The biology of the mollusca (2nd ed.). Pergamon Press.

Chicago Style (17th ed.) Citation

Purchon, R. D. The Biology of the Mollusca. 2nd ed. Oxford: Pergamon Press, 1977.

MLA (9th ed.) Citation

Purchon, R. D. The Biology of the Mollusca. 2nd ed. Pergamon Press, 1977.

Warning: These citations may not always be 100% accurate.