TY - RPRT TI - Assessment of ground-water vulnerability to atrazine leaching in Kent County, Michigan; review, comparison of results of other studies and verification AU - D. J. Holtschlag AU - C. L. Luukkonen PY - 1998 DO - 10.3133/wri984006 UR - https://pubs.usgs.gov/publication/wri984006 ID - wri984006 ER -