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1“...Geological Survey professional paper ;...”
Government Document Book -
2by Jones, William R. (William Rich), 1915-1965, Hernon, Robert M. (Robert Mann), 1907-1965, Moore, Samuel L.“...Geological Survey professional paper ;...”
Published 1967
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3by Imlay, Ralph W. (Ralph Willard), 1908-1989“...Geological Survey professional paper ;...”
Published 1968
Government Document Book