@misc{indiciae3a464a49ff53, title = {Occurrence of Agricultural Chemicals in Shallow Ground Water and the Unsaturated Zone, Northeast Nebraska Glacial Till, 2002-04}, author = {Jennifer S. Stanton and Gregory V. Steele and Jason R. Vogel}, year = {2007}, doi = {10.3133/sir20075228}, url = {https://pubs.usgs.gov/publication/sir20075228}, note = {Source identifier: sir20075228} }