TY  - RPRT
TI  - Assessing total nitrogen in surface-water samples--precision and bias of analytical and computational methods
AU  - David L. Rus
AU  - Charles J. Patton
AU  - David K. Mueller
AU  - Charles G. Crawford
PY  - 2013
DO  - 10.3133/sir20125281
UR  - https://pubs.usgs.gov/publication/sir20125281
ID  - sir20125281
ER  -