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Survey (U S.

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Bulletin - United States Geological Survey (1909)
Bulletin - United States Geological Survey (1907)
Bulletin - United States Geological Survey, Issue 607
Bulletin - United States Geological Survey, Issue 615
Bulletin, Volume 598
Bibliography and Index of North American Geology, Paleontology, Petrology, and Mineralogy, Volume 3
Professional Paper - United States Geological Survey, Issue 84
Professional Paper - United States Geological Survey, Issues 87-88
Bulletin, Volume 666
Bulletin, Volume 676