TY - BOOK AU - Taylor,Charles J. AU - Alley,William M. ED - Geological Survey (U.S.) TI - Ground-water-level monitoring and the importance of long-term water-level data SN - 0607974222 (pbk.) PY - 2001/// CY - Reston, Va. PB - U.S. Geological Survey KW - Groundwater KW - United States KW - Measurement KW - Water levels N1 - Includes bibliographical references (p. 67-68) ER -