Milligan, J. (2005). Swiss ball for total fitness: A step-by-step guide, improve strength & stability, 20 minute workouts. Greenwich editions.
Chicago-Zitierstil (17. Ausg.)Milligan, James. Swiss Ball for Total Fitness: A Step-by-step Guide, Improve Strength & Stability, 20 Minute Workouts. London: Greenwich editions, 2005.
MLA-Zitierstil (9. Ausg.)Milligan, James. Swiss Ball for Total Fitness: A Step-by-step Guide, Improve Strength & Stability, 20 Minute Workouts. Greenwich editions, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.