Craig, C. (2001). Pilates on the ball: The world's most popular workout using the exercise ball. Healing arts.
Cita Chicago Style (17a ed.)Craig, Colleen. Pilates on the Ball: The World's Most Popular Workout Using the Exercise Ball. Rochester: Healing arts, 2001.
Cita MLA (9a ed.)Craig, Colleen. Pilates on the Ball: The World's Most Popular Workout Using the Exercise Ball. Healing arts, 2001.
Precaución: Estas citas no son 100% exactas.