Air traffic control : status of FAA's modernization effort
Subtitle: fact sheet for Congressional requesters
By: United States General Accounting Office.
Publisher: The Office
Published: 1991
Place of publication: Washington, D.C
Language: eng
Number of pages: 44
Subjects: United States. Federal Aviation Administration.; Air traffic control -- United States.; Air traffic control -- Electronic equipment -- United States.
Notes: Includes bibliographical references and index.
"GAO/RCED-91-132FS"
"April 1991."