Tohutoro APA (7th ed.)
Blewett, W. L. (2012). Geology and landscape of Michigan's Pictured Rocks National Lakeshore and vicinity. Wayne State University Press.
Tohutoru Kātū Chicago (17th ed.)
Blewett, William L. Geology and Landscape of Michigan's Pictured Rocks National Lakeshore and Vicinity. Detroit: Wayne State University Press, 2012.
Tohutoro MLA (9th ed.)
Blewett, William L. Geology and Landscape of Michigan's Pictured Rocks National Lakeshore and Vicinity. Wayne State University Press, 2012.
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