United States. National Aeronautics and Space Administration. Scientific and Technical Information Division & Fichtel, C. (1990). The Energetic Gamma-Ray Experiment Telescope (EGRET) Science Symposium: Proceedings of a science symposium held at NASA Goddard Space Flight Center, Greenbelt, Maryland, November 15-16, 1989. National Aeronautics and Space Administration.
Chicago Style (17th ed.) CitationUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Division and Carl Fichtel. The Energetic Gamma-Ray Experiment Telescope (EGRET) Science Symposium: Proceedings of a Science Symposium Held at NASA Goddard Space Flight Center, Greenbelt, Maryland, November 15-16, 1989. Washington, D.C.: National Aeronautics and Space Administration, 1990.
MLA (9th ed.) CitationUnited States. National Aeronautics and Space Administration. Scientific and Technical Information Division and Carl Fichtel. The Energetic Gamma-Ray Experiment Telescope (EGRET) Science Symposium: Proceedings of a Science Symposium Held at NASA Goddard Space Flight Center, Greenbelt, Maryland, November 15-16, 1989. National Aeronautics and Space Administration, 1990.