Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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