@misc{indiciae86bb5f589355, title = {Water-level maps of the Mississippi River Valley alluvial aquifer in eastern Arkansas, spring 1992}, author = {Paul W. Westerfield and David T. Poynter}, year = {1994}, doi = {10.3133/ofr93374}, url = {https://pubs.usgs.gov/publication/ofr93374}, note = {Source identifier: ofr93374} }