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441. |
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Environmental chemistry /
by Eagen, Rachel,
Publication:
St. Catharines, ON : Crabtree Pub., 2011
. 32 p. :
29 cm.
Date:2011
Availability:
Copies available:
(1),
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442. |
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Medicine cabinet chemistry /
by Field, Jon Eben.
Publication:
St. Catherines, Ont. : Crabtree Pub., 2011
. 32 p. :
29 cm.
Date:2011
Availability:
Copies available:
(1),
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443. |
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Is our weather getting worse? /
by Townsend, John.
Publication:
St. Catharines, ON : Crabtree Pub. Company, 2011
. 24 p. :
, Includes index.
23 cm.
Date:2011
Availability:
Copies available:
(1),
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