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The Dirt on dirt /
by Bourgeois, Paulette.
Publication:
Toronto : Kids Can Press, 2008
. 48 p. :
, Includes index.
22 x 27 cm.
Date:2008
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(1),
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Erosion ;
Publication:
Oakville, Ontario : Magic Lantern Communications Ltd., 1995
. 1 DVD (26 min.)
, Closed captioned for the hearing impaired.
1/4 in.
Date:1995
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(1),
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Why are soils different colours? : and other earthy questions /
by Griffiths, Rachel.
Publication:
Markham, Ont. : Scholastic, 2007
. 16 p. :
23 cm.
Date:2007
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(1),
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