Many voices, one world communication and society, today and tomorrow : towards a new more just and more efficient world information and communication order.
| Erakunde egilea: | |
|---|---|
| Formatua: | Liburua | 
| Hizkuntza: | English | 
| Argitaratua: | London
          K. Page
    
        1980. | 
| Gaiak: | 


