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Unknown Language (2)
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Thinkertoys: A Handbook of Creative-Thinking Techniques (2nd Edition)
Paperback, 416 pages, published in 2006 by Ten Speed Press. | see this at Amazon.com »
ISBN: 1580087736
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Thinkertoys: A Handbook of Creative Thinking Techniques: FIRST EDITION
Paperback, 352 pages, published in 1991 by Ten Speed Press. | see this at Amazon.com »
ISBN: 0898154081