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We need energy /
by Walker, Colin,
Publication:
Richmond Hill, Ont. : Scholastic Canada, 1992
. 22 p. :
, Includes index.
26 cm.
Date:1992
Availability:
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(1),
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Environmental experiments about renewable energy /
by Rybolt, Thomas R.
Publication:
Hillside, NJ, U.S.A. : Enslow Publishers, 1994
. 96 p. :
, Includes index.
24 cm.
Date:1994
Availability:
Copies available:
(1),
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