United States. Bureau of the Census. (1974). Population of the United States: Trends and prospects :1950-1990; population growth, composition and distribution, economic characteristics, population projections. Washington,D.C: Department of Commerce.
Chicago Style CitationUnited States. Bureau of the Census. Population of the United States: Trends and Prospects :1950-1990; Population Growth, Composition and Distribution, Economic Characteristics, Population Projections. Washington,D.C: Department of Commerce, 1974.
MLA CitationUnited States. Bureau of the Census. Population of the United States: Trends and Prospects :1950-1990; Population Growth, Composition and Distribution, Economic Characteristics, Population Projections. Washington,D.C: Department of Commerce, 1974.