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The Calculator Puzzle Book (Paperfronts)

by Claude Birtwistle

ISBN 13: 9780716006367

Format: Paperback (128 pages)
Publisher: Elliot Right Way Books
Published: 17 Apr 1978

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The Electronic Calculator in Business, Home and School (Paperfronts S.)

by Claude Birtwistle

ISBN 13: 9780716006237

Format: Paperback (192 pages)
Publisher: Elliot Right Way Books
Published: 01 Apr 1976

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