"study number","owner","title","investigators","doi","time period"
"06069","ICPSR","Census of Governments, 1987:  Employment Statistics","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR06069.v2","1987"
"07736","ICPSR","County and City Data Book [United States] Consolidated File: County Data, 1947-1977","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR07736.v2","1977"