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Dyfyniad Arddull ChicagoHeyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Champaign, Ill: Human Kinetics, 1998.
Dyfyniad MLAHeyward, Vivian H. Advanced Fitness Assessment & Exercise Prescription. 3rd ed. Human Kinetics, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.