National Research Council (U.S.). Committee on the Youth Population and Military Recruitment, ebrary, Inc, Sackett, P. R., & Mavor, A. S. (2006). Assessing fitness for military enlistment: Physical, medical, and mental health standards. National Academies Press.

National Research Council (U.S.). Committee on the Youth Population and Military Recruitment, Inc ebrary, Paul R. Sackett, and Anne S. Mavor. Assessing Fitness for Military Enlistment: Physical, Medical, and Mental Health Standards. Washington, D.C.: National Academies Press, 2006.

National Research Council (U.S.). Committee on the Youth Population and Military Recruitment, et al. Assessing Fitness for Military Enlistment: Physical, Medical, and Mental Health Standards. National Academies Press, 2006.