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Subject
- Airplanes--Design and construction.1
- Airplanes--United States.1
- Engineers.1
- Environmental policy.1
- Interviews.1
- Natural resources.1
- Politicians--United States.1
- Roosevelt Field (Airport : Garden City, N.Y.)1
- Roosevelt, Franklin D., Jr. (Franklin Delano), 1914-1988.1
- Sikorsky, Igor Ivan, 1889-1972.1
- Speeches, addresses, etc.1