A Guide to the use of visual aids /

Bibliographic Details
Main Author: POWELL, L.S
Format: Book
Published: London: British Association, 1978.
Subjects:
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245 0 2 |a A Guide to the use of visual aids /   |c by L.S. Powell.. 
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300 # # |a 36p.. 
650 # 0 |a Audio-visual education