Παραπομπή APA

Robinson, M. W. (1983). Invertebrates, Animal types 1.

Παραπομπή Chicago Style

Robinson, Maureen; Wiggins. Invertebrates, Animal Types 1. Hutchinson & Co., London, 1983.

Παραπομπή MLA

Robinson, Maureen; Wiggins. Invertebrates, Animal Types 1. 1983.