[Committee hearings] serial, 91st Congress. 40. U.S.A. travel promotion, hearings before Subcommittee on Commerce and Finance, 91st Congress, 1st and 2d session, on H.R. 10850, H.R. 12646, H.R. 14685, and H.R. 14714, Nov. 5-Feb. 19, 1970.