ID:DA1693564X
Spencer, A. C. (Arthur Coe)
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[by A. C. Spencer, H. B. Kümmel, J. E. Wolff, R. D. Salisbury, and Charles Palache]
U.S. Geological Survey 1908 Geologic atlas of the United States no. 161
Cartographic Material (Map)
Available at 1 libraries
Arthur C. Spencer
Govt. Print. Off. 1904 Geological Survey professional paper no. 25
[by Whitman Cross, Arthur Coe Spencer and Chester Wells Purington]
U.S. Geological Survey 1899 Library ed Geologic atlas of the United States fol. 60