Study Search Results Your query returned 1 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. (?) Study Title/Investigator 1. Office of Revenue Sharing: Fifth Count File, 1970 (ICPSR 77) DUALabs, Inc.