The Illustrated Encyclopedia of Military Helicopters: A Guide to Over 80 Years of Rotorcraft, from the First Types Deployed in World War II to the Spe - Francis Crosby

Francis Crosby worked for many years at the Imperial War Museum at Duxford, England, one of the leading sites for aviation enthusiasts. His published works includes The World Encyclopedia of Fighter Aircraft, The World Encyclopedia of Bombers, and The World Encyclopedia of Naval Aircraft.