Cita APA (7th ed.)

Milligan, J. (2005). Swiss ball for total fitness: A step-by-step guide, improve strength & stability, 20 minute workouts. Greenwich editions.

Cita Chicago (17th ed.)

Milligan, James. Swiss Ball for Total Fitness: A Step-by-step Guide, Improve Strength & Stability, 20 Minute Workouts. London: Greenwich editions, 2005.

Cita MLA (9th ed.)

Milligan, James. Swiss Ball for Total Fitness: A Step-by-step Guide, Improve Strength & Stability, 20 Minute Workouts. Greenwich editions, 2005.