H.R. 4549--the Magnetic Levitation Transportation and Competitiveness Act of 1990 : hearing before the Subcommittee on Transportation, Aviation, and Materials of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred First Congress, second session, June 7, 1990

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United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Transportation, Aviation, and Materials

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