Moraines and Shore Lines of the Lake Superior Basin Frank Leverett Published: 1929 Total Pages: 96 Get eBook
Professional Paper - United States Geological Survey Geological Survey (U.S.) Published: 1928 Total Pages: 590 Get eBook
Geological Survey professional paper Geological Survey (U.S.) Published: 1987* Total Pages: Get eBook
Quaternary Geology of Minnesota and Parts of Adjacent States Frank Leverett Published: 1932 Total Pages: 168 Get eBook
Annual Report of the United States Geological Survey to the Secretary of the Interior Geological Survey (U.S.) Published: 1916 Total Pages: 1160 Get eBook
Annual Report of the Director of the Geological Society Geological Survey (U.S.) Published: 1928 Total Pages: 396 Get eBook