Geology and Oil Possibilities of Extreme Southern Illinois

Union, Johnson, Pope, Hardin, Alexander, Pulaski and Massac Counties

by Cullen Warner Parmelee, James Marvin Weller, James Stewart Machin, Orin Wainwright Rees, Ralph Early Grim, Robert James Piersol, Robert Mann Grogan, James Franklin Vaneck, Lewis Edwin Workman, Martin Calvin Watson · 1940