TY - RPRT TI - Quality of surface waters of the United States, 1957, Parts 5 and 6, Hudson Bay and upper Mississippi River basins and Missouri River Basin AU - S. K. Love PY - 1961 DO - 10.3133/wsp1521 UR - https://pubs.usgs.gov/publication/wsp1521 ID - wsp1521 ER -