The problems of broadcasting : being an account in english and french of five years radio study
by The international broadcasting union
Bok Flerspråklig 1930 Kringkastingsunionen
| Utgitt | Genève : International broadcasting union , 1930
|
|---|---|
| Omfang | 128 s. : ill., kart
|
| Emner | |
| Dewey |
