Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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