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Author: Gerry Bailey [ All ]

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  Title Copies
Early Discoveries: Astrolabe, abacus, compass, camera. . .the science, the models and YOU! (Crafty Inventions) 
Year: 2005 
ISBN: 1904668704 
ISBN 13: 9781904668701 
 1 
Working Things Out: Pulleys, turbines machines -- the science the models and YOU! (Crafty Inventions) 
Year: 2005 
ISBN: 1904668690 
ISBN 13: 9781904668695 
 1