@misc{indiciae4aefd65650e6, title = {Analysis of δ15N and δ18O to differentiate NO3− sources in runoff at two watersheds in the Catskill Mountains of New York}, author = {Douglas A. Burns and Carol Kendall}, year = {2002}, doi = {10.1029/2001wr000292}, url = {https://pubs.usgs.gov/publication/70024740}, note = {Source identifier: 70024740} }