Cita APA

Asimov, I. 1. (1969). Understanding physics (2nd printing.). New York: New American Library.

Citación estilo Chicago

Asimov, Isaac 1920-1992. Understanding Physics. 2nd printing. New York: New American Library, 1969.

Cita MLA

Asimov, Isaac 1920-1992. Understanding Physics. 2nd printing. New York: New American Library, 1969.

Precaución: Estas citas no son 100% exactas.