Heyward, V. H. (1998). Advanced fitness assessment & exercise prescription (3rd ed.). Human Kinetics.
Cita Chicago (17th ed.)Heyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Champaign, Ill: Human Kinetics, 1998.
Cita MLA (9th ed.)Heyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Human Kinetics, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.