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Cita Chicago (17th ed.)Testimony from Skylab Astronauts. Joint Hearing Before the Committee on Aeronautical and Space Sciences, United States Senate, and the Committee on Science and Astronautics, U.S. House of Representatives, Ninety-third Congress, First Session. / July 17, 1973. 1973.
Cita MLA (9th ed.)Testimony from Skylab Astronauts. Joint Hearing Before the Committee on Aeronautical and Space Sciences, United States Senate, and the Committee on Science and Astronautics, U.S. House of Representatives, Ninety-third Congress, First Session. / July 17, 1973. 1973.