Knapik, J. J., Redmond, J. E., Grier, T. L., & Sharp, M. A. (2018). Secular Trends in the Physical Fitness of United States Army Infantry Units and Infantry Soldiers, 1976-2015. Military Medicine, 183(11/12), e414. https://doi.org/10.1093/milmed/usx093
Chicago Style (17th ed.) CitationKnapik, Joseph J., Jan E. Redmond, Tyson L. Grier, and Marilyn A. Sharp. "Secular Trends in the Physical Fitness of United States Army Infantry Units and Infantry Soldiers, 1976-2015." Military Medicine 183, no. 11/12 (2018): e414. https://doi.org/10.1093/milmed/usx093.
MLA (9th ed.) CitationKnapik, Joseph J., et al. "Secular Trends in the Physical Fitness of United States Army Infantry Units and Infantry Soldiers, 1976-2015." Military Medicine, vol. 183, no. 11/12, 2018, p. e414, https://doi.org/10.1093/milmed/usx093.