TY - BOOK AU - Mast,M.Alisa AU - Clow,David W. TI - Environmental characteristics and water quality of hydrologic benchmark network stations in the western United States, 1963-95 SN - 0607951044 (pbk.) AV - GB705.W3 M37 2000 PY - 2000/// CY - Denver, CO PB - USGS Information Services KW - Hydrology KW - West (U.S.) KW - History KW - Water quality N1 - Includes bibliographical references (p. 101-105) ER -