Παραπομπή APA

American Institute of Biological Sciences. (1968). Biological science: An inquiry into life (2.).

Παραπομπή Chicago Style

American Institute of Biological Sciences. Biological Science: An Inquiry into Life. 2. Harcourt Brace & Co., New York, 1968.

Παραπομπή MLA

American Institute of Biological Sciences. Biological Science: An Inquiry into Life. 2. 1968.