Amazing Machines (Design Challenge)
by Keith Good, Tim Scrivens
ISBN 13: 9780237519865
Format: Hardcover (32 pages) Publisher: Evans Brothers Ltd Published: 26 Nov 1999 Other Format: Paperback
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Exciting Electrics (Design Challenge)
ISBN 13: 9780237519858
Format: Hardcover (32 pages) Publisher: Evans Brothers Ltd Published: 26 Nov 1999