US Army, Technical Manual, TM 5-3805-280-10, HYDRAULIC EXCAVATOR JOHN DEERE MODEL 230LCR NSN 3805-01-463-0804 AND MODEL 230LCRD WITH ROCK DRILL NSN 3805-01-463-0806 (English Edition)
US Army, Technical Manual, TM 5-3805-280-24-1, HYDRAULIC EXCAVATOR JOHN DEERE MODEL 230LCR NSN 3805-01-463-0804 AND MODEL 230LCRD WITH ROCK DRILL NSN 3805-01-463-0806 (English Edition)
US Army, Technical Manual, TM 55-3810-01-165-14, TRANSPORTABILITY GUIDANCE, FOR THE CRANE, 7-1/2-TON, ROUGH-TERR KOEHRING TYPE I, (NSN 3810-01-165-0646), TYPE II, 3810-01-165-064, (English Edition)