00763cam a2200217 a 4500 20241205145217.0 790405s1978 enka bd 000 0 eng 0313209219 0333185501 LC eng LC BD-DhBPA 371.3078 ENC 1978 The Encyclopaedia of educational media communications and technology / [edited by] Derick Unwin and Ray McAleese. London : Macmillan Press, 1978. xviii, 800 p. : ill. ; 24 cm. Includes bibliographies. Audio-visual materials Dictionaries. 48667 Educational technology Dictionaries. 48668 Unwin, Derick. 48669 McAleese, Ray, 1944- 48670 ddc BK 16633 16633 0 ddc 0 0 BPATC BPATC GEN 2018-04-11 0 371.3078 ENC 1978 10216 2018-04-11 00:00:00 2018-04-11 BK mizan 0 ddc 0 0 BPATC BPATC REF 2018-04-17 0 371.3078 ENC 1978 2973 2018-04-17 00:00:00 2018-04-17 BK mizan