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Dr. Zed's science surprises /
by Penrose, Gordon,
Publication:
Toronto : Greey de Pencier Books, 1989
. 32 p. :
, "Chickadee magazine, for young children"--Cover.
26 cm.
Date:1989
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(1),
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Real live science /
by Ingram, Jay.
Publication:
Toronto : Greey de Pencier Books, 1992
. 48 p. :
, Includes index.
28 cm.
Date:1992
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(1),
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Magic mud and other great experiments /
by Penrose, Gordon.
Publication:
Toronto, Ont. : Greey de Pencier Books, 1987
. 48 p. :
, Includes index. | On cover: The best of Dr. Zed's brilliant science activities.
28 cm.
Date:1987
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(1),
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I didn't know that! /
Publication:
Toronto : Greey de Pencier Books, 1988
. 77 p. :
, Includes index.
28 cm.
Date:1988
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(1),
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