Commercial radio operator's license study guide
By: [by] Julius Berens and Jack Berens.
Contributors: Berens, Jack, joint author.
Publisher: Chilton Book Co.
Published: 1969
Place of publication: Philadelphia
Language: eng
Subjects: Radio -- Examinations, questions, etc.; Radio operators -- United States.
Table of contents: title: v. 1. Radiotelephone third class.; title: v. 2. Radiotelephone second class.; title: v. 3. Radiotelephone first class.