APA aipamena

Asimov, I. (1972). Asimov's guide to science. New York: Penguin Books.

Chicago Style aipamena

Asimov, Isaac. Asimov's Guide to Science. New York: Penguin Books, 1972.

MLA aipamena

Asimov, Isaac. Asimov's Guide to Science. New York: Penguin Books, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.