Meeting the aviation challenges of the 1990s :
experts define key problems and identify emerging issues /
Resources, Community and Economic Development Division, United States General Accounting Office.
Washington, D.C. : U.S. General Accounting Office, 
Air traffic control
Air traffic control /
Air traffic control / Government policy /
Air traffic control / Government policy / United States /
Airports > Airports / Government policy > Airports / Government policy / United States > Airports / Government policy / United States / Congresses.
Aeronautics and state > Aeronautics and state / United States > Aeronautics and state / United States / Congresses.
Summary proceedings of a conference convened by the General Accounting Office on Nov. 29-30, 1990.
98 p. :
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