TY - BOOK AU - AU - ED - United States. TI - Soldier's manual: MOS 31V, tactical communications systems operator/mechanic skill levels 4 and 5 U1 - 355.5470973 23rd ed. PY - 1980/// CY - Washington PB - United States Department of Army KW - KW - United States. KW - Army KW - Communication systems KW - Maintenance and repair KW - Handbooks, manuals, etc KW - Handbooks, manuals, etc. N1 - Field manual :FM 11-31V4/5 ER -