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What is scarcity of resources? /
by Cohn, Jessica.
Publication:
New York : Crabtree Pub., 2009
. 32 p. :
29 cm.
Date:2009
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(1),
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What is trade? /
by Andrews, Carolyn.
Publication:
New York : Crabtree Pub. Co., 2009
. 32 p. :
29 cm.
Date:2009
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(1),
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What is importing and exporting? /
by Thompson, Gare.
Publication:
New York : Crabtree Pub. Co., 2010
. 32 p.:
, Includes index.
29 cm.
Date:2010
Availability:
Copies available:
(1),
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