A guide to the overhead projector /

Bibliographic Details
Main Author: POWELL, Len
Format: Book
Published: London: British Associattion, 1974.
Subjects:
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245 0 0 |a A guide to the overhead projector /   |c by Len Powell.. 
260 # # |a London:   |b British Associattion,   |c 1974. 
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650 # 0 |a Audio-visual education