@misc{indiciae615d74cebfcb, title = {Oklahoma; a summary of activities of the U.S. Geological Survey, Water Resources Division in fiscal years 1986-87}, author = {J.S. Havens}, year = {1988}, doi = {10.3133/ofr88172}, url = {https://pubs.usgs.gov/publication/ofr88172}, note = {Source identifier: ofr88172} }