Schiphol Amsterdam stationsgebouwcomplex 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 Igor Sikorsky; His Three Careers in Aviation Helicopters (EDUCATIEF) Helicopters and Autogiros; A History of Rotating-wing and V/STOL Aviation Teh U.S. conter-terrorist unit and the Iran hostage rescue mission Delta Force Helicopter or anything a horse can do Gevechtshelikopters; de haviken van het slagveld
