S42-81-081 - STS-042 - STS-42 earth observations

Chicago citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973. S42-81-081 - STS-042 - STS-42 earth observations. 1981-04-12/2011-07-21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/22635397. (Accessed October 17, 2018.)
APA citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973, (1981-04-12/2011-07-21) S42-81-081 - STS-042 - STS-42 earth observations. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/22635397
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/22635397>.
Note: These citations are programmatically generated and may be incomplete.