United States. Army. American Expeditionary Forces, Liggett, H., & Pershing, J. J. (1923). Report of 1st Army, American Expeditionary Forces; organization and operations. General Service School Press.
Chicago Style (17th ed.) CitationUnited States. Army. American Expeditionary Forces, Hunter Liggett, and John J. Pershing. Report of 1st Army, American Expeditionary Forces; Organization and Operations. [United States]: General Service School Press, 1923.
MLA (9th ed.) CitationUnited States. Army. American Expeditionary Forces, et al. Report of 1st Army, American Expeditionary Forces; Organization and Operations. General Service School Press, 1923.
Warning: These citations may not always be 100% accurate.