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by Ryan, J. Donald 1921-
Published: U.S. Govt. Print. Off., 1964
Description: pages iv, 379-426 : illustrations, map (1 folded color in pocket) ; 24 cm.
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by Ryan, J. Donald 1921-
Published: United States Department of the Interior, Geological Survey, 1964
Description: 1 online resource (iv, 379-426 pages, 1 page of plate) : illustrations, maps.
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Geology