APA

United States, United States, . (2004). Commercial human space flight: joint hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives and the Subcommittee on Science, Technology, and Space, Committee on Commerce, Science, and Transportation, U.S. Senate, One Hundred Eighth Congress, first session, July 24, 2003. Washington: U.S. Government Printing Office.

Chicago

United States, United States, . 2004. Commercial human space flight: joint hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives and the Subcommittee on Science, Technology, and Space, Committee on Commerce, Science, and Transportation, U.S. Senate, One Hundred Eighth Congress, first session, July 24, 2003. Washington: U.S. Government Printing Office.

Harvard

United States, United States, . (2004). Commercial human space flight: joint hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives and the Subcommittee on Science, Technology, and Space, Committee on Commerce, Science, and Transportation, U.S. Senate, One Hundred Eighth Congress, first session, July 24, 2003. Washington: U.S. Government Printing Office.

MLA

United States, United States, . Commercial human space flight: joint hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives and the Subcommittee on Science, Technology, and Space, Committee on Commerce, Science, and Transportation, U.S. Senate, One Hundred Eighth Congress, first session, July 24, 2003. Washington: U.S. Government Printing Office. 2004.