TY - RPRT TI - Geohydrologic units of the Gulf Coastal Plain in Arkansas AU - J. C. Petersen AU - M.E. Broom AU - W. V. Bush PY - 1985 DO - 10.3133/wri854116 UR - https://pubs.usgs.gov/publication/wri854116 ID - wri854116 ER -