The Encyclopaedia of educational media communications and technology /
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| Other Authors: | , |
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| Format: | Book |
| Language: | English |
| Published: |
London :
Macmillan Press,
1978.
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| Subjects: |
| Physical Description: | xviii, 800 p. : ill. ; 24 cm. |
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| Bibliography: | Includes bibliographies. |
| ISBN: | 0313209219 0333185501 : |