U.S. Department of Health, Education and Welfare. National Institute of Health, Education, & Health, W. N. I. o. (1972). The National Institute of Health almanac. Office of Information.
Chicago-referens (17:e uppl.)U.S. Department of Health, Education and Welfare. National Institute of Health, Education, och Welfare National Institute of Health. The National Institute of Health Almanac. Bethesda, Maryland: Office of Information, 1972.
MLA-referens (9:e uppl.)U.S. Department of Health, Education and Welfare. National Institute of Health, et al. The National Institute of Health Almanac. Office of Information, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.