The economics of new educational media : present status of research and trends / UNESCO.
Enregistré dans:
| Format: | Livre |
|---|---|
| Langue: | anglais |
| Publié: |
Paris :
UNESCO,
1977.
|
| Collection: | Educational Methods and Techniques
1 |
| Sujets: |
| Description matérielle: | 200 s. : il. ; 24 cm. |
|---|---|
| ISBN: | 9231014234 9232014238 |