TY - GEN AU - Alley,William M. TI - Regional ground-water quality SN - 9780471284536 (hbk.) AV - TD403 .R45 1993 U1 - 628.161 PY - 1993/// CY - New York PB - Van Nostrand Reinhold KW - Groundwater KW - Quality KW - Case studies N1 - Includes references & index ER -