the illustrated international aircraft guide Sporting and homebuilt aircraft / Michael F Jerram ; consultant ed.: Bill Gunston gevechtswapens Moderne helikopters / Bill Gunston ; [red.: Richard Collins ; vert. uit het Engels en bew.: J.C. Terweijden] Hitler's Luftwaffe : a pictorial history and technical encyclopedia of Hitler's air power in World War II / T. Wood and B. Gunston
