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"north america" » "north american"
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1
by Selin, Henrik
Published 2009
MIT Press
Subjects: “...Global warming / Political aspects / North America...”
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2
Published 1992
American Chemical Society
Subjects: “...Water quality / Great Lakes Region (North America)...”
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3
Published 2013
American Chemical Society
Subjects: “...DDT (Insecticide) / North America / Analysis...”