Cita APA

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

Citación estilo Chicago

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

Cita MLA

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