Search Results Use the search box below to revise your search, or start a new search. Studies (2) Variables Publications Your query returned 2 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Census of Population, 1980 [United States]: Journey-to-Work (ICPSR 8465) United States Department of Commerce. Bureau of the Census 2. Census of Population and Housing, 1980 [United States]: Extract Data (ICPSR 9693) Adams, Terry K.