5 2 5 D ▁will ▁serve ▁as ▁the ▁base ▁document ▁for ▁AP P - 6 ( D ) ▁as ▁the ▁two ▁documents ▁move ▁closer ▁together . ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Korean ▁War – era ▁map ▁symbols ▁at ▁AR MY . M IL ▁ ▁The ▁map ▁symbols ▁as ▁True Type ▁Font s ▁ ▁Mil Sym b — La TeX ▁package ▁for ▁drawing ▁military ▁symbols ▁( APP - 6 ( C ) ▁only ) ▁ ▁AP P - 6 — Mil it ary ▁Symbol s ▁for ▁Land ▁Based ▁Systems ▁( 1 9 8 6 ) ▁ ▁AP P - 6 ( A ) — Mil it ary ▁Symbol s ▁for ▁Land ▁Based ▁Systems ▁( 1 9 9 8 ) ▁ ▁AP P - 6 ( B ) — J oint ▁Sym b ology ▁( 2 0 0 8 ) ▁ ▁AP P - 6 ( C ) — N AT O ▁J oint ▁Military ▁Sym b ology ▁( 2 0 1 1 ) ▁ ▁M IL - ST D - 2 5 2 5 ▁manual s ▁from ▁Def ense ▁Information ▁Systems ▁Agency ▁( DIS A ) ▁ ▁FM ▁ 1 0 1 - 5 - 1 / M CR P ▁ 5 - 2 A ▁OP ER ATION AL ▁T ER MS ▁AND ▁GR AP H IC S , ▁dated ▁ 3 0 ▁September ▁ 1 9 9 7 ▁ ▁FM ▁ 1 0 1 - 5 - 1 / M CR P ▁ 5 - 2 A ▁OP ER ATION AL ▁T