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(1874) The census of Iowa, as returned in the year 1873 : showing, in detail, the population, agricultural statistics, and other items of interest / published under direction of the Executive Council, 1874. Governor's Office
(1962) Geographic and Residential Distribution of Iowa's Population and Change, 1950-1960, February 1962. Iowa State University
(1962) 1960 County Data Book, August 1962. Iowa State University
(1970) Population of Iowa places, 1970. Governor's Office
(1974) Preliminary Iowa population projection: 1970-2020, July 1974. Public Health, Department of (Health and Human Services, Department of)
(1980) Every Eighth Iowan prepared for the University of Iowa Committee on Aging, 1980. University of Iowa
(1981) Population Redistribution in the Midwest, May 1981. Iowa State University
(1984) Iowa population projections, 1980-2000, 1984. Governor's Office