McGuff, D., & Little, J. R. (2009). Body by science: A research based program for strength training, body building, and complete fitness in 12 minutes a week. McGraw-Hill.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)McGuff, Doug, و John R. Little. Body by Science: A Research Based Program for Strength Training, Body Building, and Complete Fitness in 12 Minutes a Week. New York: McGraw-Hill, 2009.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)McGuff, Doug, و John R. Little. Body by Science: A Research Based Program for Strength Training, Body Building, and Complete Fitness in 12 Minutes a Week. McGraw-Hill, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.