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Get to know levers /
by Volpe, Karen.
Publication:
New York, NY : Crabtree Pub. Company, 2009
. 32 p. :
, Includes index.
29 cm.
Date:2009
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Levers /
by Smith, Siń.
Publication:
Chicago, Ill. : Heinemann Library, 2012
. 24 p. :
, Includes index.
18 x 21 cm.
Date:2012
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Levers and pulleys /
by Rau, Dana Meachen,
Publication:
Collingwood, ON : Saunders Book Co., 2010
. 31 p. :
, Includes index. | "Super cool science experiments: levers and pulleys".
24 cm.
Date:2010
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(1),
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