A far ultraviolet image of Comet Halley, taken by an electronic camera aboard a suborbital rocket 300 kilometers above Earth, showing a hydrogen cloud surrounding the comet and extending tens of millions of kilometers from the nucleus. Scientists at the Naval Research Laboratory and the University of Texas launched the rockets to obtain images of the comet at a variety of ultraviolet wavelengths

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. A far ultraviolet image of Comet Halley, taken by an electronic camera aboard a suborbital rocket 300 kilometers above Earth, showing a hydrogen cloud surrounding the comet and extending tens of millions of kilometers from the nucleus. Scientists at the Naval Research Laboratory and the University of Texas launched the rockets to obtain images of the comet at a variety of ultraviolet wavelengths. 1986-03-13. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6405163. (Accessed October 16, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (1986-03-13) A far ultraviolet image of Comet Halley, taken by an electronic camera aboard a suborbital rocket 300 kilometers above Earth, showing a hydrogen cloud surrounding the comet and extending tens of millions of kilometers from the nucleus. Scientists at the Naval Research Laboratory and the University of Texas launched the rockets to obtain images of the comet at a variety of ultraviolet wavelengths. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6405163
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/6405163>.
Note: These citations are programmatically generated and may be incomplete.