"IF YOU ONLY KNEW WHAT IT MEANT!!"

Chicago citation style
Office for Emergency Management. Office of War Information. Domestic Operations Branch. News Bureau. 6/13/1942-9/15/1945. "IF YOU ONLY KNEW WHAT IT MEANT!!". 1943. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/535656. (Accessed June 24, 2018.)
APA citation style
Office for Emergency Management. Office of War Information. Domestic Operations Branch. News Bureau. 6/13/1942-9/15/1945, (1943) "IF YOU ONLY KNEW WHAT IT MEANT!!". Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/535656
MLA citation style
Office for Emergency Management. Office of War Information. Domestic Operations Branch. News Bureau. 6/13/1942-9/15/1945. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/535656>.
Note: These citations are programmatically generated and may be incomplete.