Cita APA

Time-Life Books. (1989). Fitness for life: Childhood to maturity. Time-Life Books.

Citación estilo Chicago

Time-Life Books. Fitness for Life: Childhood to Maturity. Alexandria, Va: Time-Life Books, 1989.

Cita MLA

Time-Life Books. Fitness for Life: Childhood to Maturity. Time-Life Books, 1989.