TY - RPRT TI - Loads of suspended sediment and nutrients from local nonpoint sources to the tidal Potomac River and Estuary, Maryland and Virginia, 1979-81 water years AU - R. Edward Hickman PY - 1987 DO - 10.3133/wsp2234g UR - https://pubs.usgs.gov/publication/wsp2234G ID - wsp2234G ER -