by Warshawsky, Isidore
Washington, D.C. : [Springfield, Va. : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; For sale by the National Technical Information Service, 1990]
by Mangum, B. W
Hampton, Va. : [Springfield, Va. : National Aeronautics and Space Administration, Langley Research Center ; For sale by the National Technical Information Service, 1986]