Air Intelligence
PRICE, Alfred
Targeting the Reich
Allied Photographic Reconnaissance over Europe. 1939 - 1945
SMITH, Constance Babington
Evidence in Camera - The Story of Photographic Intelligence in World War II
STANLEY, Roy
To Fool a Glass Eye - Camouflage versus Photoreconnaissance in World War II
TAYLOR, John W.R. & MONDEY, David
Spies in the Sky
Account of aerial reconnaissance from the First World War to the 1970s, including ECM, the U-2, Vietnam, and spy planes.