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The Delavan Lobe of the Lake Michigan Glacier of the Wisconsin Stage of Glaciation and Associated Phenomena, a Dissertation Submitted ... for the Degree of Doctor of Philosophy (department of Geology) by William C. Alden

出版	1904
URL	http://books.google.com.hk/books?id=pZFVQwAACAAJ&hl=&source=gbs_api