APA (7th ed.) Citation

United States. Army. American Expeditionary Forces. (1918). [Document not titled.]. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. American Expeditionary Forces. [Document Not Titled.]. [Place of publication not identified]: [publisher not identified], 1918.

MLA (9th ed.) Citation

United States. Army. American Expeditionary Forces. [Document Not Titled.]. [publisher not identified], 1918.