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1Published 1968“...Great Lakes (North America) Description and travel....”
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2Published 2002Subjects: “...Climatic changes Great Lakes (North America)...”
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4Published 2001Table of Contents: “... and (episode 4) Mountains -- [Vol. 3.] (episode 5) Sahel and (episode 6) Great Lakes -- [Vol. 4.] (episode 7...”
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