TY - RPRT TI - Transport of dissolved and suspended material by the Potomac River at Chain Bridge, at Washington, D.C., water years 1978-81 AU - Stephen F. Blanchard AU - D. C. Hahl PY - 1987 DO - 10.3133/wsp2234b UR - https://pubs.usgs.gov/publication/wsp2234B ID - wsp2234B ER -