Copyright law revision, index of hearings before Subcommittee on Patents, Trademarks, and Copyrights, combined subject and name index, 89th Congress, 1st session, pursuant to S. Res. 48 on S. 1006 (Aug. 18-20, 1965), 89th Congress, 2d session, pursuant to S. Res. 201 on S. 1006 (Aug. 2-25, 1966), 90th Congress, 1st session, pursuant to S. Res. 37 on S. 597 (Mar. 15-Apr. 28, 1967); [prepared by Harriet L. Oler.]