Newton, William Albert, 1912- Stratigraphic studies of Pennsylvanian outcrops in part of southeastern Illinois / by William A. Newton and J. Marvin Weller. - Urbana : Printed by authority of the state of Illinois, 1937. - 31 p. : ill., maps, tables, diagr. ; 25 cm. LCCN: gs 37000322 Subjects--Topical Terms: Geology--Illinois.Geology, Stratigraphic--Paleozoic. LC Class. No.: QE673 / .N4