TY - RPRT TI - Distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and Estuary, Maryland and Virginia, May 1978 to November 1981 AU - Virginia Carter AU - James E. Paschal AU - Nancy C. Bartow PY - 1985 DO - 10.3133/wsp2234a UR - https://pubs.usgs.gov/publication/wsp2234A ID - wsp2234A ER -