Detz, J. (2005). Ultimate core ball workout: Strengthening and sculpting exercises with over 200 step-by-step photos. Ulysses Press.
Chicago Style (17th ed.) CitationDetz, Jeanine. Ultimate Core Ball Workout: Strengthening and Sculpting Exercises with over 200 Step-by-step Photos. Berkley: Ulysses Press, 2005.
MLA (8th ed.) CitationDetz, Jeanine. Ultimate Core Ball Workout: Strengthening and Sculpting Exercises with over 200 Step-by-step Photos. Ulysses Press, 2005.
Warning: These citations may not always be 100% accurate.