Dyfyniad APA

(2003). Harper's Illustrated biochemistry. New York: McGraw-Hilll.

Dyfyniad Arddull Chicago

Harper's Illustrated Biochemistry. New York: McGraw-Hilll, 2003.

Dyfyniad MLA

Harper's Illustrated Biochemistry. New York: McGraw-Hilll, 2003.

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