1920. University of Arizona. Library. Statewide coverage of 1920 Places based on population data available from the U.S. Bureau of the Census. Population data is from the Fourteenth Cen... University of Arizona.
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1930. University of Arizona. Library. Statewide coverage of 1930 Places based on population data available from the U.S. Bureau of the Census. Population data is from the Fifteenth Cens... University of Arizona.
1940. University of Arizona. Library. Statewide coverage of 1940 Places based on population data available from the U.S. Bureau of the Census. Population data is from the Sixteenth Cens... University of Arizona.
1960. University of Arizona. Library. Statewide coverage of 1960 Places based on population data available from the U.S. Bureau of the Census. Population data is from the Eighteenth Dec... University of Arizona.
1970. University of Arizona. Library. Statewide coverage of 1970 Places based on population data available from the U.S. Bureau of the Census. Population data is from the 1970 Census of... University of Arizona.
2000. Arizona. Department of Health Services. Depiction of the incidence rate of Chlamydia in Arizona in 2000 by county. Incidence rate is per 100,000 persons. Arizona Department of Health Services.
1930. University of Arizona. Library. Statewide coverage of 1930 Census County Subdivisions (Minor Civil Divisions). University of Arizona.
1940. University of Arizona. Library. Statewide coverage of 1940 Census County Subdivisions (Minor Civil Divisions). University of Arizona.
1950. University of Arizona. Library. Statewide coverage of 1950 Census County Subdivisions. University of Arizona.
1960. University of Arizona. Library. Statewide coverage of 1960 Census County Subdivisions. University of Arizona.