White, J., Mayhew, J., & Piper, F. (1980). Prediction of body composition in college football players. The Journal of sports medicine and physical fitness, 20(3), S. 317-324.

White, J., J.L Mayhew, and F.C Piper. "Prediction of Body Composition in College Football Players." The Journal of Sports Medicine and Physical Fitness 20, no. 3 (1980): S. 317-324.

White, J., J.L Mayhew, and F.C Piper. "Prediction of Body Composition in College Football Players." The Journal of Sports Medicine and Physical Fitness 20.3 (1980): S. 317-324.