TY - RPRT TI - Nutrient and sediment concentrations, trends, and loads from five subwatersheds in the Patuxent River Basin, Maryland, 1986-96 AU - Joy S. Lizarraga PY - 1999 DO - 10.3133/wri984221 UR - https://pubs.usgs.gov/publication/wri984221 ID - wri984221 ER -