United States. National Transportation Safety Board. (1996). Air traffic control equipment outages. National Transportation Safety Board.
Chicago Style (17th ed.) CitationUnited States. National Transportation Safety Board. Air Traffic Control Equipment Outages. Washington, D.C.: National Transportation Safety Board, 1996.
MLA (9th ed.) CitationUnited States. National Transportation Safety Board. Air Traffic Control Equipment Outages. National Transportation Safety Board, 1996.
Warning: These citations may not always be 100% accurate.