TY  - RPRT
TI  - Variable impacts of contemporary versus legacy agricultural phosphorus on US river water quality
AU  - Sarah M. Stackpoole
AU  - Edward G. Stets
AU  - Lori A. Sprague
PY  - 2019
DO  - 10.1073/pnas.1903226116
UR  - https://pubs.usgs.gov/publication/70208186
ID  - 70208186
ER  -