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Green power : eco-energy without pollution /
by Jefferis, David.
Publication:
New York, NY : Crabtree Pub. Co., 2006
. 32 p. :
29 cm.
Date:2006
Availability:
Copies available:
(1),
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Robot voyagers /
by Jefferis, David.
Publication:
New York : Crabtree Pub. Co., 2007
. 32 p. :
, Includes index. | "All about machines that think"--Cover.
28 cm.
Date:2007
Availability:
Copies available:
(1),
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Black holes and other bizarre space objects /
by Jefferis, David.
Publication:
New York : Crabtree Pub. Co., 2006
. 32 p. :
29 cm.
Date:2006
Availability:
Copies available:
(1),
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Extreme structures : mega-construction of the 21st century /
by Jefferis, David.
Publication:
New York : Crabtree Pub. Co., 2006
. 32 p. :
, Includes index.
29 cm.
Date:2006
Availability:
Copies available:
(1),
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