Kennedy, L. E. Subsurface geology and oil and gas resources of OSAGE county, Oklahoma - Washington : Government Printing Office, 1940. - 210-236p. : ill. ; 25cm. - Geological survey Bulletin; 900-E . Subjects--Topical Terms: PetroleumGeologyOklahomaOsage County LC Class. No.: PAM QE75.B9 no.900-E