Goldenberg, L., & Twist, P. (2007). Strength ball training (2nd ed.). Human Kinetics.
Čikaški stil citiranja (17. izdanje)Goldenberg, Lorne, i Peter Twist. Strength Ball Training. 2nd ed. Champaign, Ill.: Human Kinetics, 2007.
MLA način citiranja (9. izdanje)Goldenberg, Lorne, i Peter Twist. Strength Ball Training. 2nd ed. Human Kinetics, 2007.
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