Shields, Bert A.
Principles of Air navigation / by Bert A. Shields - vii, 450 pages : illustrated ; 20 cm. - The introductory aviation series .
Includes index.
Navigation (Aeronautics).
629.132521 / Sh6p
Principles of Air navigation / by Bert A. Shields - vii, 450 pages : illustrated ; 20 cm. - The introductory aviation series .
Includes index.
Navigation (Aeronautics).
629.132521 / Sh6p