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Effects of engine emissions from high-speed civil transport aircraft a two-dimensional modeling stud

[Washington, D.C.] : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; [Springfield, Va. : For sale by the National Technical Information Service], 1991. 1991

Ozone depletion, greenhouse gases, and climate change proceedings of a joint symposium by the Board

Joint Symposium on Ozone Depletion, Greenhouse Gases, and Climate Change (1988 : National Academy of Sciences)
Washington, D.C. : National Academy Press : [National Aeronautics and Space Administration], 1989. 1989