Ordnance maintenance, quadrant sights, M1917, M1917A1, M1918, and M1918A1 /
prepared under direction of the Chief of Ordnance.

APA Citation

United States. War Department., United States. Army. Ordnance Department. (1941). Ordnance maintenance, quadrant sights, M1917, M1917A1, M1918, and M1918A1. Washington [D.C.]: War Dept. .

MLA Citation

United States. War Department, and United States. Army. Ordnance Department. Ordnance Maintenance, Quadrant Sights, M1917, M1917A1, M1918, And M1918A1. Washington [D.C.]: War Dept. , 1941.

Warning: These citations may not always be complete (especially for serials).