Radio markets supplement ...
Published: 1935
Language: eng
Table of contents: title: [v. 1.]  Pt. 1. Germany (sound); title: pt. 2. France (Television); title: [v. 2.] pt. 3. United Kingdom (Television); title: pt. 4. Italy (2-way phone); title: pt. 5. Italy (Television); title: pt. 6. Japan (Television); title: pt. 7. United States (Set statistics)