TY  - RPRT
TI  - Optical techniques for the determination of nitrate in environmental waters: Guidelines for instrument selection, operation, deployment, maintenance, quality assurance, and data reporting
AU  - Brian A. Pellerin
AU  - Brian A. Bergamaschi
AU  - Bryan D. Downing
AU  - John Franco Saraceno
AU  - Jessica D. Garrett
AU  - Lisa D. Olsen
PY  - 2013
DO  - 10.3133/tm1d5
UR  - https://pubs.usgs.gov/publication/tm1D5
ID  - tm1D5
ER  -