TY - RPRT TI - Altitude and configuration of the potentiometric surface in West Fallowfield, Upper Oxford, and Lower Oxford Townships, Chester County, Pennsylvania, March through July 2002 AU - Abdul Mohammad PY - 2004 DO - 10.3133/ofr03262 UR - https://pubs.usgs.gov/publication/ofr03262 ID - ofr03262 ER -