The impact upon small business of dual distribution and related vertical integration. Volume 8, Washington, D.C., October 18, November 1, 4, 8, 18, and December 10, 1963 : hearings before Subcommittee No. 4, Select Committee on Small Business, House of Representatives, Eighty-eighth Congress, first session pursuant to H. Res. 13, a resolution creating a select committee to conduct studies and investigations of the problems of small business