[Blank], [Blank] - State: [Blank] - Year: 1839 - File Number: V21

Chicago citation style
War Department. The Adjutant General's Office. 3/4/1907-9/18/1947. [Blank], [Blank] - State: [Blank] - Year: 1839 - File Number: V21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/28576142. (Accessed May 26, 2018.)
APA citation style
War Department. The Adjutant General's Office. 3/4/1907-9/18/1947, [Blank], [Blank] - State: [Blank] - Year: 1839 - File Number: V21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/28576142
MLA citation style
War Department. The Adjutant General's Office. 3/4/1907-9/18/1947. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/28576142>.
Note: These citations are programmatically generated and may be incomplete.