APA Citation

Purchon, R. D., & Purchon, R. D. (1977). The Biology of the mollusca (2. edition.). Oxford: [Pergamon Press].

Chicago Style Citation

Purchon, R. D., and R. D. Purchon. The Biology of the Mollusca. 2. edition. Oxford: [Pergamon Press], 1977.

MLA Citation

Purchon, R. D., and R. D. Purchon. The Biology of the Mollusca. 2. edition. Oxford: [Pergamon Press], 1977.

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