TY - RPRT TI - Surface water supply of the United States, 1966-70, Part 7, Lower Mississippi River basin, v. 1, Lower Mississippi River basin except Arkansas River basin AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1975 DO - 10.3133/wsp2120 UR - https://pubs.usgs.gov/publication/wsp2120 ID - wsp2120 ER -