United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Aviation, & ProQuest (Firm). (2000). Air traffic control modernization: Hearing before the Subcommittee on Aviation of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Sixth Congress, first session, March 25, 1999. [U.S. G.P.O.].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Aviation, and ProQuest (Firm). Air Traffic Control Modernization: Hearing Before the Subcommittee on Aviation of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Sixth Congress, First Session, March 25, 1999. Washington, DC: [U.S. G.P.O.], 2000.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Aviation, and ProQuest (Firm). Air Traffic Control Modernization: Hearing Before the Subcommittee on Aviation of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Sixth Congress, First Session, March 25, 1999. [U.S. G.P.O.], 2000.