The Mississippian and Pennsylvanian (Carboniferous) systems in the United States / U.S. Geological Survey.
- Physical Description: 1 online resource (551 unnumbered page) : illustrations, maps.
- Publisher: Washington : United States Department of the Interior, Geological Survey, 1979.
Title from title screen (viewed October 9, 2014).
|Bibliography, etc. Note:||
Includes bibliographical references.
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|Subject:||Geology > United States.
Geology, Stratigraphic > Mississippian.
Geology, Stratigraphic > Pennsylvanian.