National Strength and Conditioning Association (U.S.), Haff, G. G., & Triplett, N. T. (2016). Essentials of strength training and conditioning (Fourth edition.). Human Kinetics.
Chicago-viite (17. p.)National Strength and Conditioning Association (U.S.), G. Gregory Haff, ja N. Travis Triplett. Essentials of Strength Training and Conditioning. Fourth edition. Champaign, IL: Human Kinetics, 2016.
MLA-viite (9. p.)National Strength and Conditioning Association (U.S.), et al. Essentials of Strength Training and Conditioning. Fourth edition. Human Kinetics, 2016.
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