United States. Congress. Senate. Committee on Commerce, Science, and Transportation. (2013). Airline service improvements: Hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, first session, April 11, 2007. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Commerce, Science, and Transportation. Airline Service Improvements: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, First Session, April 11, 2007. Washington: U.S. Government Printing Office, 2013.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Commerce, Science, and Transportation. Airline Service Improvements: Hearing Before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Tenth Congress, First Session, April 11, 2007. U.S. Government Printing Office, 2013.