Functional discounts : hearing before the Antitrust Subcommittee (Subcommittee No. 5) of the Committee on th Judiciary, House of Representatives, Eighty-seventh Congress, first session, on H.R. 3465, H.R. 4151, and H.R.4529, bills to amend section 2 of the Clayton act. as amended by the Robinson-Patman act, by adding a new proviso, August 30, 1961. (U.S. Govt. Print. Off, 1962)