United States. Department of Transportation. Office of Inspector General & United States. Federal Aviation Administration. (2009). Air traffic control: Potential fatigue factors. U.S. Dept. of Transportation, Office of Inspector General.
Chicago Style (17th ed.) CitationUnited States. Department of Transportation. Office of Inspector General and United States. Federal Aviation Administration. Air Traffic Control: Potential Fatigue Factors. [Washington, D.C.]: U.S. Dept. of Transportation, Office of Inspector General, 2009.
MLA (9th ed.) CitationUnited States. Department of Transportation. Office of Inspector General and United States. Federal Aviation Administration. Air Traffic Control: Potential Fatigue Factors. U.S. Dept. of Transportation, Office of Inspector General, 2009.