pt. 2 - pt. 2B [2]. -- U.S. Govt. Print. Off., 1972-1973. -- (Role of giant corporations . Hearings before the Subcommittee on Monopoly of the Select Committee on Small Business, United States Senate, Ninety-second Congress, first session, on the role of giant corporations in the American and world economies ; pt. 2-2B . Corporate secrecy).