Ground instructor rating
Subtitle: an auxiliary text to Ground instructor.
By: By Charles A. Zweng ...
Contributors: Zweng, Charles Alfonso, 1893- .; Pan American Navigation Service.
Publisher: Pan American navigation service
Published: 1941
Place of publication: Glendale, Calif
Language: eng
Number of pages: 111
Subjects: Aeronautics
Notes: "Lithographed."