What Do Pulleys and Gears Do? (What Do... Do?)

Materias

• Gearing
• Pulleys
• Simple machines
• Juvenile literature

Ediciones (2)

• What Do Pulleys and Gears Do? (What Do... Do?) (1997)

  Heinemann Library · ISBN 9780431062730

• What Do Pulleys and Gears Do? (What Do... Do?) (1996)

  Heinemann Library · ISBN 9780431062723

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