[Committee hearings] serial, 92d Congress. 76. Transportation act of 1972, pt. 1, hearings before Subcommittee on Transportation and Aeronautics, 92d Congress, 2d session on H.R. 11824, H.R. 11826, and H.R. 11207 (and all identical bills). Mar. 27-May 12, 1972.

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