• 4 Middleton Shelving Facility
• 2 Wendt Commons Library - Closed
• 1 WHS State Archives Preservation Facility

• 6 Journals, Magazines, Newspapers

• 6 Air traffic control
• 6 United States. Federal Aviation Administration
• 3 Abbreviations
• 3 Aeronautics
• 3 Aids to air navigation
• 3 Airplanes
• 3 Airports
• 3 Dispatching
• 2 Communication and traffic
• 1 Aeronautical radio stations
• 1 Management
• 1 Traffic control

• 6 Air Traffic Organization (U.S.). System Operations Services
• 6 United States
• 5 United States. Air Traffic Rules and Procedures Service
• 4 United States. Air Traffic Operations Service
• 4 United States. Air Traffic Service
• 1 Air Traffic Airspace Management Program (U.S.)
• 1 Air Traffic Organization (U.S.). Mission Support Services

• 6 English

• 6 United States
• 1 Canada

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