National Center for Health Statistics (U.S.) & National Center for Health Services Research. (1975). Health, United States. U.S. Dept. of Health, Education and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics.
Cita Chicago Style (17a ed.)National Center for Health Statistics (U.S.) y National Center for Health Services Research. Health, United States. Rockville, Md.: U.S. Dept. of Health, Education and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics, 1975.
Cita MLA (9a ed.)National Center for Health Statistics (U.S.) y National Center for Health Services Research. Health, United States. U.S. Dept. of Health, Education and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics, 1975.
