Lithologic and environmental atlas of Berea sandstone (Mississippian) in the Appalachian Basin /

by Potter, Paul Edwin, DeReamer, John H., Jackson, Dana S., Maynard, J. Barry
Charleston, W. Va. : Appalachian Geological Society, 1983

The farm as natural habitat : reconnecting food systems with ecosystems /

Washington, D.C. : Island Press, 2002