@misc{indiciaed5bc368db337, title = {Regional assessment of NLEAP NO 3- N leaching indices}, author = {B.K. Wylie and M.J. Shaffer and M.D. Hall}, year = {2007}, doi = {10.1111/j.1752-1688.1995.tb04028.x}, url = {https://pubs.usgs.gov/publication/70186248}, note = {Source identifier: 70186248} }