Water purification course.
Enlisted Men's School.
APA Citation
U.S. Army Engineer School. (1941). Water purification course: Enlisted Men's School. Special text. Fort Belvoir, Va.: The Engineer School.
MLA Citation
U.S. Army Engineer School. Water Purification Course: Enlisted Men's School. Special text. Fort Belvoir, Va.: The Engineer School, 1941.
Warning: These citations may not always be complete (especially for serials).