APA (7th ed.) Citation

(1918). Yanks: A book of A.E.F. verse. [publisher not identified].

Chicago Style (17th ed.) Citation

Yanks: A Book of A.E.F. Verse. [Place of publication not identified]: [publisher not identified], 1918.

MLA (9th ed.) Citation

Yanks: A Book of A.E.F. Verse. [publisher not identified], 1918.