AS09-21-3253 - Apollo 9

Chicago citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973. AS09-21-3253 - Apollo 9. 1967-11-09/1972-12-19. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/16673297. (Accessed September 19, 2018.)
APA citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973, (1967-11-09/1972-12-19) AS09-21-3253 - Apollo 9. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/16673297
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/16673297>.
Note: These citations are programmatically generated and may be incomplete.