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Proceedings of the X-15 first flight 30th anniversary celebration proceedings of an anniversary cele

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

Proceedings of the X-15 first flight 30th anniversary celebration proceedings of an anniversary cele

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