Pennsylvanian Conodont Assemblages from La Salle County, Northern Ill Published: 1972 Total Pages: 456 Get eBook
Revision of Conodont Biofacies Nomenclature and Interpretations of Environmental Controls in Pennsylvanian Rocks of Eastern and Central North America Glen K. Merrill Published: 1969 Total Pages: 56 Get eBook
Circular - Division of the Illinois State Geological Survey Published: 1983 Total Pages: 274 Get eBook
North-Central Section of the Geological Society of America Donald L. Biggs Published: 1987 Total Pages: 460 Get eBook
Depositional Environments in Parts of the Carbondale Formation, Western and Northern Illinois William Henking Smith Published: 1970 Total Pages: 284 Get eBook
Catalog of the United States Geological Survey Library U.S. Geological Survey Library Published: 1976 Total Pages: 764 Get eBook
