TY - RPRT TI - The ground-water system and ground-water quality in western Snohomish County, Washington AU - B. E. Thomas AU - J.M. Wilkinson AU - S.S. Embrey PY - 1997 DO - 10.3133/wri964312 UR - https://pubs.usgs.gov/publication/wri964312 ID - wri964312 ER -