APA (7th ed.) Citation

United States. War Department. Library. (1897). List of photographs and photographic negatives relating to War for Union, now in War Department Library. GPO.

Chicago Style (17th ed.) Citation

United States. War Department. Library. List of Photographs and Photographic Negatives Relating to War for Union, Now in War Department Library. [Washington]: GPO, 1897.

MLA (9th ed.) Citation

United States. War Department. Library. List of Photographs and Photographic Negatives Relating to War for Union, Now in War Department Library. GPO, 1897.