Study of the antitrust laws; staff report of the Subcommittee on antitrust and monopoly of the Committee on the judiciary, United States Senate, eighty-fourth Congress, second session, pursuant to S.Res.170, To study the antitrust laws of the United States, and their administration, interpretation and effect. Attempted merger of Puget Sound power and light co. and the Washington water power co. Printed for the use of the Committee... (Gov't., 1956)