TY - RPRT TI - Surface water supply of the United States 1961-65: Part 7. Lower Mississippi River basin: Volume 2, Arkansas River basin AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1969 DO - 10.3133/wsp1921 UR - https://pubs.usgs.gov/publication/wsp1921 ID - wsp1921 ER -