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Balloon science /
by Kaner, Etta.
Publication:
Toronto : Kids Can Press, 1989
. 96 p. :
25 cm.
Date:1989
Availability:
Copies available:
(2),
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How the universe works /
by Couper, Heather.
Publication:
Pleasantville, N.Y. : Reader's Digest Association, 1994
. p. cm.
, Includes index.
Date:1994
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(1),
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The Puzzlers book /
Publication:
Toronto : Greey de Pencier Books, 1990
. 48 p. :
, On cover: A green world book, explore and enjoy your environment.
23 cm.
Date:1990
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(1),
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How science works /
by Hann, Judith.
Publication:
Pleasantville, N.Y. : Reader's Digest Association, 1991
. 192 p. :
, Includes index.
29 cm.
Date:1991
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(1),
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Bugwise /
by Hickman, Pamela.
Publication:
Toronto : Kids Can Press, 1990
. 96 p. :
, At head of title: Federation of Ontario Naturalists. | Cover title: Bug wise.
24 cm.
Date:1990
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Copies available:
(1),
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