Search Results Use the search box below to revise your search, or start a new search. Studies (3) Variables Publications Your query returned 3 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Census of Urban Crime, 1970 (ICPSR 8275) Hellman, Daryl A.; Fox, James Alan 2. City Police Expenditures, 1946-1985: [United States] (ICPSR 8706) Triplett, Ruth, et al. 3. Public and Private Resources in Public Safety [United States]: Metropolitan Area Panel Data, 1977 and 1982 (ICPSR 8988) Zedlewski, Edwin W.