TY  - RPRT
TI  - Quality-control design for surface-water sampling in the National Water-Quality Assessment Program
AU  - David K. Mueller
AU  - Jeffrey D. Martin
AU  - Thomas J. Lopes
PY  - 1997
DO  - 10.3133/ofr97223
UR  - https://pubs.usgs.gov/publication/ofr97223
ID  - ofr97223
ER  -