TY  - RPRT
TI  - Tracing anthropogenic inputs of nitrogen to ecosystems
AU  - Carol Kendall
AU  - Emily M. Elliott
AU  - Scott D. Wankel
PY  - 2008
DO  - 10.1002/9780470691854.ch12
UR  - https://pubs.usgs.gov/publication/70199116
ID  - 70199116
ER  -