TY - RPRT TI - Temporal and vertical variation of hydraulic head in aquifers in the Edgewood area, Aberdeen Proving Ground, Maryland AU - Colleen A. Donnelly AU - Fredrick J. Tenbus PY - 1998 DO - 10.3133/wri984047 UR - https://pubs.usgs.gov/publication/wri984047 ID - wri984047 ER -