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Subject
- Aboriginal Tasmanians -- Antiquities -- Collection and preservation1
- Adelaide Airport (S.A.) -- Maps1
- Aeronautics -- Environmental aspects -- Australia1
- Aeronautics -- Law and legislation -- United States1
- Aeronautics, Commercial -- Environmental aspects -- Australia1
- Aeronautics, Commercial -- Environmental aspects -- United States5
- Aeronautics, Commercial -- Security measures -- Washington Metropolitan Area1
- Air -- Pollution -- Truk -- Moen Island1
- Air traffic capacity -- Pennsylvania -- Philadelphia3
- Air traffic control -- Great Britain1
- Air traffic control -- United States1
- Aircraft exhaust emissions -- Australia1
- Aircraft exhaust emissions -- Environmental aspects1
- Aircraft noise2
- Aircraft. Noise. Adelaide1
- Aircraft. Noise. Australia1
- Aircraft. Noise. Conference proceedings1
- Aircraft. Noise. Effects on residents. Australia. Inquiry reports1
- Aircraft. Noise. Effects on residents. Sydney. Reports, surveys1
- Airlines -- Environmental aspects -- United States1