World's Fastest Four-Engine Piston-Powered Aircraft - Republic's XR-12 Rainbow & the Hughes XF-11
angielski | miękka oprawa | 144 str. | 2011
Howard's Whirlybirds : Howard Hughes' Amazing Pioneering Helicopter Exploits
angielski | twarda oprawa | 240 str. | 2013
AH-64 Apache Units of Operations Enduring Freedom and Iraqi Freedom
angielski | miękka oprawa | 96 str. | 2005