AS09-25-3691 - Apollo 9 - Apollo 9 Mission image - Earth Observation - El Salvador, Honduras, Nicaragua

Chicago citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973. AS09-25-3691 - Apollo 9 - Apollo 9 Mission image - Earth Observation - El Salvador, Honduras, Nicaragua. 1967-11-09/1972-12-19. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/16674781. (Accessed October 21, 2018.)
APA citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973, (1967-11-09/1972-12-19) AS09-25-3691 - Apollo 9 - Apollo 9 Mission image - Earth Observation - El Salvador, Honduras, Nicaragua. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/16674781
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/16674781>.
Note: These citations are programmatically generated and may be incomplete.