Air traffic control modernization : status of the current program and planning for the Next Generation Air Transportation System : testimony before the Subcommittee on Aviation, Committee on Transportation and Infrastructure, House of Representatives
Title from title screen (viewed on Oct. 10, 2006).
"For release ... June 21, 2006."
Paper version available from: U.S. Government Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548.
Includes bibliographical references.
Mode of access: Internet from GPO Access web site. Address as of 10/10/06: http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=gao&docid=f:d06653t.pdf; current access available via PURL.