Transportation diversification : hearings before the Subcommittee of the Committee on Interstate and Foreign Commerce, House of Representatives, Eighty-sixth Congress, second session on H.R. 7960, H.R. 7961, H.R. 7962, H.R. 9279, H.R. 9280, and H.R. 9281 : bills to amend the interstate commerce act and the federal aviation act of 1958 to provide equal opportunity to engage in other modes of transportation, February 2, 3, 5, April 12, 13, and 14, 1960 - United States. Congress. House. Committee on Interstate and Foreign Commerce (U.S. G.P.O., 1960)