S120E010877 - STS-120 - Retroreflector on PMA2.

Chicago citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973-. S120E010877 - STS-120 - Retroreflector on PMA2.. 1981-04-12/2011-07-21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/23436785. (Accessed June 20, 2018.)
APA citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973-, (1981-04-12/2011-07-21) S120E010877 - STS-120 - Retroreflector on PMA2.. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/23436785
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/23436785>.
Note: These citations are programmatically generated and may be incomplete.