Guns in the sky : the air gunners of World War Two / [by] Chaz Bowyer Mutual inspection for peace Death in the air : the war diary and photographs of a flying corps pilot encyklopedie der photographie Photographie aus der Luft / Christian Heinrich Emil Adolf Miethe Précis de photographie aérienne / C.M. Goussot Map and aerial photo reading simplified / W.F. Heavey Military maps and air photographs : their use and interpretation / by A.K. Lobeck and Wentworth J. Tellington ; with an introd. by John K. … Nederlandsche luchtkarteering in Nieuw Guinea / R.N. De Ruyter van Steveninck Photogrammetrie und Luftbildwesen / Bearbeitet von Reinhard Hugershoff Luchtverkenning in dienst van de vrede Aerial photography : Practice and application Luchtfoto's van Nederlandsche Vestingen en oude Versterkingen