US war birds from World War 1 to Vietnam

Jane's Pocket Book of Military Transport and Training Aircraft

Bombers 1939-45

Fighters, attack and training aircraft, 1939-45

World Unmanned Aircraft

Fighters in service

Bombers: patrol and reconnaissance aircraft 1914-1919

Fighters: attack and training aircraft 1914-1919

Jane's Unmanned Aerial Vehicles and Targets 1995-96 (Jane's Unmanned Aerial Vehicles and Targets)

Die Weltkrieg II - Flugzeuge

The pocket encyclopedia of bombers at war