Air traffic control : continuing delays anticipated for the advanced automation system :
report to Congressional requesters /
United States General Accounting Office.
|Corporate Author:||United States.|
Washington, D.C. : U.S. General Accounting Office, 
United States. /
Federal Aviation Administration.
Air traffic control > Air traffic control / United States > Air traffic control / United States / Finance.
Air traffic control > Air traffic control / United States > Air traffic control / United States / Automation.
11 p. ;
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