@misc{indiciae3edbc7a4a4ae, title = {Subsurface geology and oil and gas resources of Osage County, Oklahoma. Part 8, Parts of township 20 north, ranges 9 and 10 east, and township 21 north, ranges 8 and 9 east and all of township 21 north, range 10 east}, author = {C. T. Kirk and W. R. Dillard and Otto Leatherock and H. D. Jenkins}, year = {1941}, doi = {10.3133/b900h}, url = {https://pubs.usgs.gov/publication/b900H}, note = {Source identifier: b900H} }