United States. Office of Aging & United States. Department of Health, Education and Welfare. Library. (1963). Aging in the modern world: An annotated bibliography. U.S. Department of Health, Education and Welfare, Welfare Administration, Office of Aging.
Citace podle Chicago (17th ed.)United States. Office of Aging a Education and Welfare. Library United States. Department of Health. Aging in the Modern World: An Annotated Bibliography. Washington: U.S. Department of Health, Education and Welfare, Welfare Administration, Office of Aging, 1963.
Citace podle MLA (8th ed.)United States. Office of Aging a Education and Welfare. Library United States. Department of Health. Aging in the Modern World: An Annotated Bibliography. U.S. Department of Health, Education and Welfare, Welfare Administration, Office of Aging, 1963.