Developing Subject Knowledge in Design and Technology: Systems and Control
by Gwyneth Owen-Jackson
ISBN 13: 9781858562438
Format: Paperback (118 pages) Publisher: Trentham Books Ltd Published: 30 Sep 2001
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Technology: A Systems Approach
by John Myerson
ISBN 13: 9780748702015
Format: Paperback (104 pages) Publisher: Nelson Thornes Ltd Published: 01 Jan 1990