Gaya APA

Service, P, A, N. (1968). Flight engineers manual. with text airplane operating manuals, FAR'S, and typical axaminantions for flight engineer certificate, including turbojet, turboprop,and recoprocating-engine class, ratings : A. Zweng manual 7th.rev.and exponded ed. . California: Pan American Navigation.

Gaya MLA

Service, Pan, American, Navigation. "Flight engineers manual. with text airplane operating manuals, FAR'S, and typical axaminantions for flight engineer certificate, including turbojet, turboprop,and recoprocating-engine class, ratings : A. Zweng manual 7th.rev.and exponded ed.". California: Pan American Navigation, 1968. Text.