VTOL Aircraft and Helicopters Jane's pocket book 20; Helicopters Fairey Aircraft since 1915 Warplanes of the world 1918-1939 Collier's new photographic history of the world's war : including sketches, drawings and paintings made by artists at the front / Photographs by the official … Jane's encyclopedia of Aviation : Volume 1 Jane's encyclopedia of Aviation : Volume 2 Jane's encyclopedia of Aviation : Volume 3 Jane's encyclopedia of Aviation : Volume 4 Jane's encyclopedia of Aviation : Volume 5 Jane's encyclopedia of aviation Fantastic flying machines
