Heyward, V. H. (1998). Advanced fitness assessment & exercise prescription (3rd ed.). Human Kinetics.
Chicago-referens (17:e uppl.)Heyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Champaign, Ill: Human Kinetics, 1998.
MLA-referens (9:e uppl.)Heyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Human Kinetics, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.