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Timeline
| Chapter title |
U
|
|---|---|
| Chapter number | 21 |
| Book title |
The Encyclopaedia of Educational Media Communications and Technology
|
| Published by |
Palgrave Macmillan, London, January 1978
|
| DOI | 10.1007/978-1-349-81526-5_21 |
| Book ISBNs |
978-1-349-81528-9, 978-1-349-81526-5
|
| Authors |
Derick Unwin, Ray McAleese, Unwin, Derick, McAleese, Ray |