Heyward, V. H. (1998). Advanced fitness assessment & exercise prescription (3rd ed.). Human Kinetics.
Chicago-viite (17. p.)Heyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Champaign, Ill: Human Kinetics, 1998.
MLA-viite (9. p.)Heyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Human Kinetics, 1998.
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