TY - RPRT TI - Transport of agricultural chemicals in surface flow, tileflow, and streamflow of Walnut Creek Watershed near Ames, Iowa, April 1991-September 1993 AU - P. J. Soenksen PY - 1996 DO - 10.3133/wri964017 UR - https://pubs.usgs.gov/publication/wri964017 ID - wri964017 ER -