Basic Mathematics Course II Author:Armed Forces Institute Education Manual EM 309. Selected and prepared by the editorial staff, United States Armed Forces Institute. "A self-teaching course...for the use of personnel of Army, Navy, Marine Corps, Coast Guard." (No theory, it's all practice, with lots of story problems, diagrams and illustrations.) Originally published in 1942. Based on Basic Mathe... more »matics by William Betz.« less