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Annual meeting and technical conference of the Numerical Control Society (12th : 1975 )：NC/CAM Expo` 75-Progress through goverment, education and industry cooperation
Annual meeting and technical conference of the Numerical Control Society.Lake,1975.
International Conference on Ada Programming Language Applications For the NASA Space Station.International Conference on Ada Programming Language Applications For the NASA Space Station(1st : 1986 : Texas)：proceedings．V.2.Univ of Houston-Clear Lake,1986.
International Conference on Ada Programming Language Applications For the NASA Space Station.International Conference on Ada Programming Language Applications For the NASA Space Station(1st : 1986 : Texas)：proceedings．V.1.Univ of Houston-Clear Lake,1986.
