TY  - RPRT
TI  - Quality-assurance data for routine water analysis in the laboratories of the US Geological Survey; 1981 annual report
AU  - D.B. Peart
AU  - Nancy Thomas
PY  - 1983
DO  - 10.3133/wri834090
UR  - https://pubs.usgs.gov/publication/wri834090
ID  - wri834090
ER  -