Air traffic control : voice communications system challenges continue : report to the Chairman, Subcommittee on Transportation and Related Agencies, Committee on Appropriations, U.S. Senate
Title:
Air traffic control : voice communications system challenges continue : report to the Chairman, Subcommittee on Transportation and Related Agencies, Committee on Appropriations, U.S. Senate
Author:
United States. General Accounting Office.
Corporate Author:
Publication Information:
Washington, D.C. : U.S. General Accounting Office, [1991]
Physical Description:
13 p. ; 28 cm.
General Note:
Cover title.
"August 1991."
"GAO/IMTEC-91-49."
"B-234691"--P. 1.
Corporate Subject:
Subject Term: