Παραπομπή APA

Purchon, R. D. (1968). Biological of the mollusca. Pergamon press.

Παραπομπή Chicago Style

Purchon, R. D. Biological of the Mollusca. London: Pergamon press, 1968.

Παραπομπή MLA

Purchon, R. D. Biological of the Mollusca. Pergamon press, 1968.