TY  - RPRT
TI  - U.S. Geological Survey nutrient preservation experiment: Nutrient concentration data for surface-, ground-, and municipal-supply water samples and quality-assurance samples
AU  - Charles J. Patton
AU  - Earl P. Truitt
PY  - 1995
DO  - 10.3133/ofr95141
UR  - https://pubs.usgs.gov/publication/ofr95141
ID  - ofr95141
ER  -