Curtis, John B.Clayton, Jerry L.Sulistyo, Gunardi B.2007-01-032022-02-032007-01-032022-02-031994https://hdl.handle.net/11124/785141994 Spring.Includes illustrations (some color), maps.Includes bibliographical references.masters thesesengCopyright of the original work is retained by the author.Source rock evaluation and oil-source rock correlation of the Upper Pennsylvanian (Virgilian) and Lower Permian (Wolfcampian) in southwestern NebraskaText