The economics of new educational media : present status of research and trends / UNESCO.
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| Format: | Book |
|---|---|
| Language: | English |
| Published: |
Paris :
UNESCO,
1977.
|
| Series: | Educational Methods and Techniques
1 |
| Subjects: |
| Physical Description: | 200 s. : il. ; 24 cm. |
|---|---|
| ISBN: | 9231014234 9232014238 |