S120E010008 - STS-120 - External Tank after separation from Discovery during the STS-120 Mission.

Chicago citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973. S120E010008 - STS-120 - External Tank after separation from Discovery during the STS-120 Mission.. 1981-04-12/2011-07-21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/23436187. (Accessed December 15, 2018.)
APA citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973, (1981-04-12/2011-07-21) S120E010008 - STS-120 - External Tank after separation from Discovery during the STS-120 Mission.. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/23436187
MLA citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/23436187>.
Note: These citations are programmatically generated and may be incomplete.