APA

United States, . (2007). Progress of construction of the Capitol Visitor Center, 2006: hearings before a Subcommittee of the Committee on Appropriations, United States Senate, One Hundred Ninth Congress, second session, special hearings February 15, ..., March 15, ..., April 27, ..., May 24, ..., June 28, ..., August 2, ..., September 21, ..., November 15, 2006, Washington, DC. Washington: U.S. G.P.O.

Chicago

United States, . 2007. Progress of construction of the Capitol Visitor Center, 2006: hearings before a Subcommittee of the Committee on Appropriations, United States Senate, One Hundred Ninth Congress, second session, special hearings February 15, ..., March 15, ..., April 27, ..., May 24, ..., June 28, ..., August 2, ..., September 21, ..., November 15, 2006, Washington, DC. Washington: U.S. G.P.O.

Harvard

United States, . (2007). Progress of construction of the Capitol Visitor Center, 2006: hearings before a Subcommittee of the Committee on Appropriations, United States Senate, One Hundred Ninth Congress, second session, special hearings February 15, ..., March 15, ..., April 27, ..., May 24, ..., June 28, ..., August 2, ..., September 21, ..., November 15, 2006, Washington, DC. Washington: U.S. G.P.O.

MLA

United States, . Progress of construction of the Capitol Visitor Center, 2006: hearings before a Subcommittee of the Committee on Appropriations, United States Senate, One Hundred Ninth Congress, second session, special hearings February 15, ..., March 15, ..., April 27, ..., May 24, ..., June 28, ..., August 2, ..., September 21, ..., November 15, 2006, Washington, DC. Washington: U.S. G.P.O. 2007.