Uniforms and Traditions of The German Army Volume 3 by John R Angolia and Adolph Schlicht.
Roger James Bender Publishing books are to this day some of the best works on Uniforms, Insignia, Medals and other military accoutrements throughout history and remain a pinnacle for in depth information on Militaria within the collecting community. These books have become highly collectible themselves as they are long out of print.