Air annual of the British empire, vol. 2
Aircraft Year Book, 1930, by Aeronautical Chamber of Commerce of America
A text book on aviation; the new cadet system of ground school training
Aviation cybersecurity : foundations, principles, and applications
Baughman's aviation dictionary and reference guide, aero-thesaurus
Bringing the Future Within Reach: Celebrating 75 Years of the NASA John H. Glenn Research Center
Casey Jones cyclopedia of aviation terms