Cita APA (7th ed.)

Time-Life Books. (1987). The fit body: Building endurance. Time-Life Books.

Cita Chicago (17th ed.)

Time-Life Books. The Fit Body: Building Endurance. Alexandria, Va: Time-Life Books, 1987.

Cita MLA (9th ed.)

Time-Life Books. The Fit Body: Building Endurance. Time-Life Books, 1987.