Dòng Nội dung
1
Soaring : flight manual : private/commercial / Soaring Society of America.
[Hobbs, N.M.] ; : Soaring Society of America, c1999.
1 v. (various pagins) : ill. maps ; 23 cm.
2
Victory through air power / Major Alexander P. De Seversky.
New York : Simon and Schuster, 1942.
354 (i.e. 358) p. ; 22 cm.