TY - RPRT TI - Development of a numerical model to simulate groundwater flow in the shallow aquifer system of Assateague Island, Maryland and Virginia AU - John P. Masterson AU - Michael N. Fienen AU - Dean B. Gesch AU - Carl S. Carlson PY - 2013 DO - 10.3133/ofr20131111 UR - https://pubs.usgs.gov/publication/ofr20131111 ID - ofr20131111 ER -