Columbia subject headings:
Air traffic control--United States--Evaluation.
United States. Federal Aviation Administration--Management.
United States. Federal Aviation Administration--Reorganization.
Harvard subject headings:
Air traffic control--United States--Evaluation.
United States. Federal Aviation Administration--Management.
United States. Federal Aviation Administration--Reorganization.
Princeton subject headings:
Air traffic control--United States--Evaluation.
United States. Federal Aviation Administration--Management.
United States. Federal Aviation Administration--Reorganization.