Successful radio advertising with sponsor participation programs.

Mode of access: Internet.

Trattato del radio latino : instrumento ... per prendere qual si voglia misura, [et] positione di luogo tanto in cielo, come in terra, il quale oltre alle operazioni proprie sue fa anco tutte quelle della Gran Regola di C. Tolomeo, [et] dell'antico Radio Astronomico /

Edit16,

Radio refractometry /

Includes bibliographical references (p. 15-18).

Highway advisory radio in the Philadelphia area /

Mode of access: Internet.

Fundamentals of radio and electronics.

Mode of access: Internet.

Subversive influence in the United Electrical, Radio, and Machine Workers of America : hearings ... Eighty-second Congress, second session ...

Hearings held April 17-June 26, 1952.

The radio boys on the Mexican border /

Mode of access: Internet.

Just a minute : 15, 30, and 60 second radio public service announcements and social security.

Mode of access: Internet.

Highway advisory radio in construction areas /

Mode of access: Internet.

Radio laws of the United States /

Mode of access: Internet.