Dyfyniad APA

Allen, O. E. (1981). Building sound bones and muscles. Time-Life Books.

Dyfyniad Arddull Chicago

Allen, Oliver E. Building Sound Bones and Muscles. Alexandria, Va: Time-Life Books, 1981.

Dyfyniad MLA

Allen, Oliver E. Building Sound Bones and Muscles. Time-Life Books, 1981.

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