U.S. Army, Technical Bulletins, US Army, TB 1-1520-210-20-54, INSPECTION OF TURNBUCKLE BODY (PART NUMBER 204-011-137-1) FOR ALL UH-1 SERIES AIRCRAFT, military ... U.S. Army, publishing, us government, by [U.S. Army, U.S. Military, U.S. Government, D. Kvasnicka, U.S. Department of Defense]