Coffman, S. (2007). Successful programs for fitness and health clubs: 101 profitable ideas. Champaign, IL: Human Kinetics.
استشهاد بنمط شيكاغوCoffman, Sandy. Successful Programs for Fitness and Health Clubs: 101 Profitable Ideas. Champaign, IL: Human Kinetics, 2007.
MLA استشهادCoffman, Sandy. Successful Programs for Fitness and Health Clubs: 101 Profitable Ideas. Champaign, IL: Human Kinetics, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.