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. 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. Iowa Youth and Families Project, 1989-1992 (ICPSR 26721) Conger, Rand D.; Lasley, Paul; Lorenz, Frederick O.; et al. 2. Variations in Criminal Patterns Among Narcotic Addicts in Baltimore and New York City, 1983-1984 (ICPSR 9586) Nurco, David N.; Hanlon, Thomas E.; Kinlock, Timothy W.; et al.