Hanley R.E. Combat Conditioning Manual: Jiu-Jitsu - Defense

Chicago. 1943. — 159 p.A quick and easy way to learn method of defense to match and surpass the toughness of our enemies.
In instructing the science of self-defense to various groups of Marines.
It was discovered that there was a pressing need for some sort of basic reference guide for students to use as a memory refresher between classes.
This book is the answer.