Help Your Child with the New Mathematics (Paperfronts S.)
by Claude Birtwistle
ISBN 13: 9780716006756
Format: Paperback (192 pages) Publisher: Elliot Right Way Books Published: 13 Apr 1982
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The Calculator Puzzle Book (Paperfronts)
ISBN 13: 9780716006367
Format: Paperback (128 pages) Publisher: Elliot Right Way Books Published: 17 Apr 1978