Commercial radio operators license study guide
Title:
Commercial radio operators license study guide
Author:
Berens, Julius.
Personal Author:
Publication Information:
Philadelphia: Chilton Book Company, c1969.
Physical Description:
3 v.: ill.; 24 cm
Contents:
v.1.Radiotelephone third class.--v.2.Radiotelephone second class.--v.3.Radiotelephone first class