TY  - RPRT
TI  - Assessing the relationship between groundwater nitrate and animal feeding operations in Iowa (USA)
AU  - Keith W. Zirkle
AU  - Bernard T. Nolan
AU  - Rena R. Jones
AU  - Peter J. Weyer
AU  - Mary H. Ward
AU  - David C. Wheeler
PY  - 2016
DO  - 10.1016/j.scitotenv.2016.05.130
UR  - https://pubs.usgs.gov/publication/70171123
ID  - 70171123
ER  -