The problems of transmitting press messages, a study submitted by UNESCO and the International Telecommunication Union to the Economic and Social Council of the United Nations.
| Egile korporatiboa: | , |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
[Paris]
s.n.
[1956].
|
| Gaiak: |