[Committee hearings] serial, 91st Congress. 28. Merchant marine legislation, hearings before Subcommittee on Merchant Marine, 91st Congress, on H.R. 265 (construction-differential subsidies), H.R. 6972 mobile trade fairs), H.R. 15549 (United Seamen's Service), pt. 1. June 10-24, 1970.

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