Ashworth, W. (2000). Great Lakes journey: A new look at America's freshwater coast. Wayne State University Press.
Citace podle Chicago (17th ed.)Ashworth, William. Great Lakes Journey: A New Look at America's Freshwater Coast. Detroit: Wayne State University Press, 2000.
Citace podle MLA (9th ed.)Ashworth, William. Great Lakes Journey: A New Look at America's Freshwater Coast. Wayne State University Press, 2000.
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