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Call No: 621.8 [ All ]

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  Title Copies
What Do Pulleys and Gears Do? (What do... do?) 
Year: 1997 
ISBN: 0431062730 
ISBN 13: 9780431062730 
Call No: 621.8 
 1 
What Do Screws Do? (What do... do?) 
Year: 1997 
ISBN: 0431062633 
ISBN 13: 9780431062631 
Call No: 621.8 
 1 
What Do Wheels and Cranks Do? (What do... do?) 
Year: 1997 
ISBN: 0431062714 
ISBN 13: 9780431062716 
Call No: 621.8 
 1 
Wheels (Make it Move!) 
Year: 1993 
ISBN: 1855612003 
ISBN 13: 9781855612006 
Call No: 621.8 
 1 
Wheels, Pulleys and Levers (Science Workshop) 
Year: 1993 
ISBN: 0749611758 
ISBN 13: 9780749611750 
Call No: 621.8 
 1