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Sông_Cuyahoga Chú thích|date=
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Sông Sông Columbia Sông Đồng Nai Sông Hồng Sông Đà Sông băng Sông Hằng Sông Công (thành phố) Sông Nin Sông HudsonTài liệu tham khảo
WikiPedia: Sông_Cuyahoga http://www.cleveland.com/weblogs/print.ssf?/mtlogs... http://www.fallsnewspress.com/article.php?pathToFi... http://www.fallsnewspress.com/article.php?pathToFi... http://www.fallsnewspress.com/article.php?pathToFi... http://www.fallsnewspress.com/news/article/2074781 http://www.journal-news.com/local/content/gen/ap/O... http://www.ohio.com/mld/ohio/news/editorial/122430... http://www.time.com/time/magazine/article/0,9171,9... http://ech.case.edu/ech-cgi/article.pl?id=CR9 http://ech.case.edu/ech-cgi/article.pl?id=CRF1