Goldenberg, L., & Twist, P. (2002). Strength ball training: 69 exercises using Swiss balls and medicine balls. Champaign, IL : Human Kinetics.
Chicago-viite (17. p.)Goldenberg, Lorne, ja Peter Twist. Strength Ball Training: 69 Exercises Using Swiss Balls and Medicine Balls. Champaign, IL : Human Kinetics, 2002.
MLA-viite (9. p.)Goldenberg, Lorne, ja Peter Twist. Strength Ball Training: 69 Exercises Using Swiss Balls and Medicine Balls. Champaign, IL : Human Kinetics, 2002.
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