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Energy projects for young scientists /
by Gardner, Robert,
Publication:
New York : F. Watts, 1987
. 127 p. :
, Includes index.
24 cm.
Date:1987
Availability:
Copies available:
(1),
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This is the way it works : a collection of machines /
by Gardner, Robert,
Publication:
Garden City, N.Y. : Doubleday, 1980
. 127 p. :
, Includes index.
24 cm.
Date:1980
Availability:
Copies available:
(1),
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