Austro-Hungarian Aircraft
"Austro-Hungarian Army Aircraft of World War One" is by far the most comprehensive book on the subject in English (and perhaps any language). It presents the aircraft used by the K.u.K. LFT (Austria-Hungary's Imperial and Royal Flying Service) in a clear and concise manner and explains (as much as that is possible) the Dual Monarchy's Byzantine aircraft procurement system. The book is lavishly illustrated with period photographs and scale line drawings and is simply a must-have for those interested in Austro-Hungarian aircraft.