United States. Congress. House. Committee on Science and Technology (2007-2011). Subcommittee on Energy and Environment. (2009). Investigating the nature of matter, energy, space, and time: Hearing before the Subcommittee on Energy and Environment, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, first session, October 1, 2009. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Science and Technology (2007-2011). Subcommittee on Energy and Environment. Investigating the Nature of Matter, Energy, Space, and Time: Hearing Before the Subcommittee on Energy and Environment, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, First Session, October 1, 2009. Washington: U.S. G.P.O., 2009.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Science and Technology (2007-2011). Subcommittee on Energy and Environment. Investigating the Nature of Matter, Energy, Space, and Time: Hearing Before the Subcommittee on Energy and Environment, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, First Session, October 1, 2009. U.S. G.P.O., 2009.