Advanced Map and Aerial Photograph Reading. FM 21-26 Military Symbols. FM 21-30 Topographic Symbols. FM 21-31 Field Service Pocketbook Sketching. FM 21-35 Defense Against CBR Attack. FM 21-40, AFM 355-9 Defense Against CBR Attack. FM 21-40, AFM 355-9 Defense Against CBR Attack. FM 21-40, AFM 355-9 Sodiers's Manual for Defensie Against CBR Attack. FM 21-41 Soldiers Handbook for Nuclear, Biological and Chemical Warfare. FM 21-41 Visual Signal. FM 21-60 Combat Training of the Individual Soldier and Patrolling. FM 21-75 Evasion and Escape. FM 21-77
