Red smoke is used to simulate a chemical attack on an Air Force compound during the chemical warfare exercise PURPLE PENNY '89

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. Red smoke is used to simulate a chemical attack on an Air Force compound during the chemical warfare exercise PURPLE PENNY '89. 1989-01-26. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6447930. (Accessed November 18, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (1989-01-26) Red smoke is used to simulate a chemical attack on an Air Force compound during the chemical warfare exercise PURPLE PENNY '89. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6447930
MLA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6447930>.
Note: These citations are programmatically generated and may be incomplete.