"study number","owner","title","investigators","doi","time period"
"07555","ICPSR","Comparative Survey of Freedom, 1972-1976","Gastil, Raymond D.","http://dx.doi.org/10.3886/ICPSR07555.v1","1976"
"24385","ICPSR","Correlates of War Project: International Trade Data, 1870-2006","Barbieri, Katherine; Keshk, Omar; Pollins, Brian","http://dx.doi.org/10.3886/ICPSR24385.v1","2006"
"07623","ICPSR","Cross-National Population by Age and Sex, 1966-1974","United Nations","http://dx.doi.org/10.3886/ICPSR07623.v2","1974"
"07892","ICPSR","Historical Supplement to the Demographic Yearbook, 1948-1978","United Nations","http://dx.doi.org/10.3886/ICPSR07892.v1","1978"
"07493","ICPSR","World Population, 1950-1975","United States Department of Commerce. Bureau of the Census. International Statistical Program Center","http://dx.doi.org/10.3886/ICPSR07493.v1","1975"
"05032","ICPSR","World Population, 1973  ","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR05032.v1","1973"
"07893","ICPSR","Yearbook of World Energy Statistics, Master File, 1970-1979","United Nations","http://dx.doi.org/10.3886/ICPSR07893.v1","1979"