Williford, H. N., Scharff-Olson, M, Pugh, S, Duey, W. J. & Barksdale, J. M. (1999). Physiological status and prediction of cardiovascular fitness in highly trained youth soccer athletes. The Journal of Strength and Conditioning Research, 13 (1), 10-15.
APA (7th ed.) CitationWilliford, H. N., Scharff-Olson, M., Pugh, S., Duey, W. J., & Barksdale, J. M. (1999). Physiological status and prediction of cardiovascular fitness in highly trained youth soccer athletes. The Journal of Strength and Conditioning Research, 13(1), 10-15.
Chicago Style (17th ed.) CitationWilliford, H. N., M. Scharff-Olson, S. Pugh, W. J. Duey, and J. M. Barksdale. "Physiological Status and Prediction of Cardiovascular Fitness in Highly Trained Youth Soccer Athletes." The Journal of Strength and Conditioning Research 13, no. 1 (1999): 10-15.
MLA (9th ed.) CitationWilliford, H. N., et al. "Physiological Status and Prediction of Cardiovascular Fitness in Highly Trained Youth Soccer Athletes." The Journal of Strength and Conditioning Research, vol. 13, no. 1, 1999, pp. 10-15.