A model of the X-30 Orient Express hypersonic aerospace plane currently in the research and planning stage of development by the Department of Defense and NASA. The hydrogen-powered X-30 is expected to be capable of horizontal takeoff and landing, and be capable of operating at speeds between Mach 12 and Mach 25 at altitudes between 100,000 and 350,000 feet

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. A model of the X-30 Orient Express hypersonic aerospace plane currently in the research and planning stage of development by the Department of Defense and NASA. The hydrogen-powered X-30 is expected to be capable of horizontal takeoff and landing, and be capable of operating at speeds between Mach 12 and Mach 25 at altitudes between 100,000 and 350,000 feet. 1987-02-02. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6413230. (Accessed May 22, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1987-02-02) A model of the X-30 Orient Express hypersonic aerospace plane currently in the research and planning stage of development by the Department of Defense and NASA. The hydrogen-powered X-30 is expected to be capable of horizontal takeoff and landing, and be capable of operating at speeds between Mach 12 and Mach 25 at altitudes between 100,000 and 350,000 feet. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6413230
MLA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6413230>.
Note: These citations are programmatically generated and may be incomplete.