Legislation to strengthen penalties under the antitrust laws : Hearings before the Subcommittee on Antitrust and Monopoly of the Committee on the Judiciary, United States Senate, Eighty-seventh Congress, first [-second] session, pursuant to S. Res. 52 on S. 996 ... [and others] ..
[pt.1] 1st session, pursuant to S. Res. 52, on S. 996. September 6, and October 2, 1961 -- pt. 2. 2nd session, pursuant to S. Res. 258 on S. 996. March 9, 1962