Flett. (2006). Swiss ball: For strength, tone and posture. London: PRC Publishing.
Chicago Style CitationFlett. Swiss Ball: For Strength, Tone and Posture. London: PRC Publishing, 2006.
MLA CitationFlett. Swiss Ball: For Strength, Tone and Posture. London: PRC Publishing, 2006.
Warning: These citations may not always be 100% accurate.