United States. Army. Infantry Division, 7th, National World War I Museum at Liberty Memorial, & Adam Matthew Digital (Firm). The hour glass: Of the Seventh Division, United States Army. Headquarters Seventh Division.
Chicago Style (17th ed.) CitationUnited States. Army. Infantry Division, 7th, National World War I Museum at Liberty Memorial, and Adam Matthew Digital (Firm). The Hour Glass: Of the Seventh Division, United States Army. Paris: Headquarters Seventh Division.
MLA (9th ed.) CitationUnited States. Army. Infantry Division, 7th, et al. The Hour Glass: Of the Seventh Division, United States Army. Headquarters Seventh Division.
Warning: These citations may not always be 100% accurate.