AST-21-1731 - Apollo Soyuz Test Project - Apollo Soyuz Test Project, North Vietnam, China, Gulf of Tonkin, Hainan Island

Chicago citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973-. AST-21-1731 - Apollo Soyuz Test Project - Apollo Soyuz Test Project, North Vietnam, China, Gulf of Tonkin, Hainan Island. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/16632089. (Accessed June 18, 2018.)
APA citation style
National Aeronautics and Space Administration. Lyndon B. Johnson Space Center. 2/17/1973-, AST-21-1731 - Apollo Soyuz Test Project - Apollo Soyuz Test Project, North Vietnam, China, Gulf of Tonkin, Hainan Island. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/16632089
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/16632089>.
Note: These citations are programmatically generated and may be incomplete.