Description and instructions for the use of position lights, mark I and mark II.
Prepared by the Ordnance department, Washington, D.C. Army war college, 1917.

APA Citation

United States. Army. Ordnance Department. (1918). Description and instructions for the use of position lights, mark I and mark II. Washington.

MLA Citation

United States. Army. Ordnance Department. Description And Instructions for the Use of Position Lights, Mark I And Mark II. Washington, 1918.

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