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. Calling the Police: Citizen Reporting of Serious Crime, 1979 (ICPSR 8185) Spelman, William; Brown, Dale K. 2. Police Referral Practices and Social Service Agency Practices in Three Metropolitan Areas, 1977 (ICPSR 7791) Ostrom, Elinor; Parks, Roger B.; Whitaker, Gordon P.