Dyfyniad APA

Asimov, I. (1966). Understanding physics. New York: The New American Library.

Dyfyniad Arddull Chicago

Asimov, Isaac. Understanding Physics. New York: The New American Library, 1966.

Dyfyniad MLA

Asimov, Isaac. Understanding Physics. New York: The New American Library, 1966.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.