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Waves : the electromagnetic universe /
by Skurzynski, Gloria.
Publication:
Washington, D.C. : | Emeryville, Calif. : National Geographic Society ; | Distributed by Publishers Group West, 1996
. 48 p. :
, Includes index.
29 cm.
Date:1996
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(1),
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Over the edge /
by Skurzynski, Gloria.
Publication:
Washington, D.C. : National Geographic Society, 2002
. 149 p. :
23 cm.
Date:2002
Availability:
Copies available:
(1),
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