Study Search Results Your query returned 2 results. Use the search box below to revise your search, or start a new search. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded (?) Study Title/Investigator 1. Personnel Managers Study: Chile, 1963 (ICPSR 7052) Landsberger, Henry A. 2. Union Leaders Study: Chile, 1962 (ICPSR 7316) Landsberger, Henry A.