The 7 ground instructor ratings
By: by Charles A. Zweng.
Edition: 10th ed.
Publisher: Pan American Navigation Service
Published: 1961
Place of publication: North Hollywood, Calif
Language: eng
Number of pages: 231
Subjects: Aeronautics -- Examinations, questions, etc.
Notes: Bibliography: p. 223-[224]
First published in 1942 under title: Ground instructor rating.