Radio operator's license Q & A manual.
Edition: 3d ed.
Publisher: J. F. Rider
Published: 1951
Place of publication: New York
Language: eng
Number of pages: 699
Subjects: Radio -- Examinations, questions, etc.; Radio operators -- United States.
Notes: Based on the Study guide and reference material for commercial radio operator examinations and on other releases issued by the U.S. Federal Communications Commission.