United States. Congress. House. Committee on Science and Astronautics. Subcommittee on Manned Space Flight & ProQuest (Firm). (1969). 1970 NASA Authorization: Hearings before the United States House Committee on Science and Astronautics, Subcommittee on Manned Space Flight, Ninety-First Congress, first session, on Feb. 28, Mar. 6-8, 11, 12, 14, 25, 1969. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Science and Astronautics. Subcommittee on Manned Space Flight and ProQuest (Firm). 1970 NASA Authorization: Hearings Before the United States House Committee on Science and Astronautics, Subcommittee on Manned Space Flight, Ninety-First Congress, First Session, on Feb. 28, Mar. 6-8, 11, 12, 14, 25, 1969. Washington: U.S. G.P.O., 1969.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Science and Astronautics. Subcommittee on Manned Space Flight and ProQuest (Firm). 1970 NASA Authorization: Hearings Before the United States House Committee on Science and Astronautics, Subcommittee on Manned Space Flight, Ninety-First Congress, First Session, on Feb. 28, Mar. 6-8, 11, 12, 14, 25, 1969. U.S. G.P.O., 1969.