[중고외서]
The Pilot's Manual: Ground School: All the Aeronautical Knowledge Required to Pass the FAA Exams and Operate as a Private and Commercial Pilot (Hardcover, 3)
[중고외서]
The Pilot's Manual: Ground School: All the Aeronautical Knowledge Required to Pass the FAA Exams and Operate as a Private and Commercial Pilot (Hardcover, 3)