Van Hise, Charles Richard, 1857-1918. The geology of the lake Superior region. - Washington, Govt. Print. Off., 1911- - 641 p. Bibliography: p. 73-84. LCCN: gs 11000568 Subjects--Topical Terms: Geology--Superior, Lake.Iron ores--Superior, Lake. LC Class. No.: QE75 / .M7 vol. 52 Gov. Doc. Class. No.: I 19.9:52