Air traffic control : justifications for capital investments need strengthening :
report to the Chairman, Subcommittee on Transportation and Related Agencies, Committee on Appropriations, House of Representatives /
United States General Accounting Office.
|Corporate Author:||United States.|
Washington, D.C. : The Office ; 1993]
United States. /
Federal Aviation Administration
United States. / Federal Aviation Administration /
United States. / Federal Aviation Administration / Procurement /
Air traffic control > Air traffic control / United States > Air traffic control / United States / Automation.
27 p. :
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||University of Illinois at Urbana-Champaign|