"study number","owner","title","investigators","doi","time period"
"33802","RCMD","American Community Survey (ACS): Public Use Microdata Sample (PUMS), 2009","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR33802.v1","2009"
"13400","ICPSR","Census of Population and Housing, 2000 [United States]:  Public Law (P.L.) 94-171 Adjusted Data      ","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR13400.v3","2000"
"03144","ICPSR","Census of Population and Housing, 2000 [United States]:  Public Law (P.L.) 94-171 Data","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR03144.v3","2000"
"03194","ICPSR","Census of Population and Housing, 2000 [United States]:  Summary File 1, States","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR03194.v2","2000"
"13566","ICPSR","Census of Population and Housing, 2000 [United States]:  Summary File 1 Supplement, States  ","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR13566.v2","2000"
"13288","ICPSR","Census of Population and Housing, 2000 [United States]:  Summary File 2, Advance National","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR13288.v2","2000"
"13403","ICPSR","Census of Population and Housing, 2000 [United States]:  Summary File 2, Final National","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR13403.v2","2000"
"13248","ICPSR","Census of Population and Housing, 2000 [United States]:  Summary File 2, Iowa","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR13248.v2","2000"
"13527","ICPSR","Census of Population and Housing, 2000 [United States]: Summary File 4, Iowa","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR13527.v2","2000"