The Estimation of the Immigration Component of Population Growth

Davis Kingsley , “The Migrations of Human Populations,” Scientific American, September 1974, Vol. 231, No. 3, p. 103.

U.S. Census Bureau, 1970 Census of Population, General, Social and Economic Characteristics, PC (1).

Population and the American Future. The Report of the Commission on Population Growth and the American Future, chapter 13, p. 114. U.S. Government Printing Office, Washington, D. C.

ZPG and Immigration, a Discussion Paper. Zero Population Growth, 1346 Connecticut Avenue, N. W., Washington, D. C. 20036. (Copies available on request.)

Current Population Reports, Population Estimates and Projections, U.S. Department of Commerce, Bureau of the Census, Series P-25, No. 493, December 1972, p. 5 & 26. (Gives estimated population growth at replacement fertility with zero net immigration.)