Cosby, M. (2005). Stretching & toning for flexibility & definition: A step-by-step guide develop your elasticity 20-minute workouts. PRC Publishing.
Lua i Stíl Chicago (17ú heag.)Cosby, Melissa. Stretching & Toning for Flexibility & Definition: A Step-by-step Guide Develop Your Elasticity 20-minute Workouts. Bramley Road, London: PRC Publishing, 2005.
Lua MLA (9ú heag.)Cosby, Melissa. Stretching & Toning for Flexibility & Definition: A Step-by-step Guide Develop Your Elasticity 20-minute Workouts. PRC Publishing, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.