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Light, color & lenses /
by Robson, Pam.
Publication:
New York : Gloucester Press, 1993
. 32 p. :
, Includes index.
29 cm.
Date:1993
Availability:
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(1),
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Geography for fun projects /
by Robson, Pam.
Publication:
Brookfield, Conn. : Copper Beech Books, 2001
. 160 p. :
, Includes index. | "With hands-on experiments and activities on seas, mountains, ecosystems, and much, much more." -- Cover.
27 cm.
Date:2001
Availability:
Copies available:
(1),
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