Cite

St. Mihiel offensive, map showing daily position of front line : Map Room G-3, G.H.Q., September 1918.

MLA

St. Mihiel Offensive, Map Showing Daily Position of Front Line : Map Room G-3, G.H.Q., September 1918. s.n.], 1918. https://collections.library.yale.edu/catalog/15826956.

APA, 6th edition

St. Mihiel offensive, map showing daily position of front line : Map Room G-3, G.H.Q., September 1918. (1918). [Maps]. s.n.], https://collections.library.yale.edu/catalog/15826956.