Helicopter Directory Helicopter Book illustrated guide to Military Helicopters Vietnam Helicopter Handbook Helicopters at war, a pictorial history Helicopter; History, Piloting and how it Flies Dragonflies; The Story of Helicopters and Autogiros Helicopters (EDUCATIEF) Helicopters and Autogiros; A History of Rotating-wing and V/STOL Aviation Helicopter or anything a horse can do Military Helicopter Handbook 2001; The international guide to the Military Helicopter industry VTOL Aircraft and Helicopters
