Weislogel, G. S. (1983). Study to determine the IFR operational profile and problems of the general aviation single pilot. National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [For sale by the National Technical Information Service].
Chicago Style (17th ed.) CitationWeislogel, G. S. Study to Determine the IFR Operational Profile and Problems of the General Aviation Single Pilot. Washington, D.C. : [Springfield, Va.]: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [For sale by the National Technical Information Service], 1983.
MLA (9th ed.) CitationWeislogel, G. S. Study to Determine the IFR Operational Profile and Problems of the General Aviation Single Pilot. National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [For sale by the National Technical Information Service], 1983.