Dyfyniad APA

Wallace, R. A. (1996). Biology: The science of life. New York: HarperCollins.

Dyfyniad Arddull Chicago

Wallace, Robert A. Biology: The Science of Life. New York: HarperCollins, 1996.

Dyfyniad MLA

Wallace, Robert A. Biology: The Science of Life. New York: HarperCollins, 1996.

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