TY  - RPRT
TI  - Colorimetric determination of nitrate plus nitrite in water by enzymatic reduction, automated discrete analyzer methods
AU  - Charles J. Patton
AU  - Jennifer R. Kryskalla
PY  - 2011
DO  - 10.3133/tm5b8
UR  - https://pubs.usgs.gov/publication/tm5B8
ID  - tm5B8
ER  -