TY  - RPRT
TI  - A guide to the design of surface-water-quality studies
AU  - R. C. Averett
AU  - L.J. Schroder
PY  - 1994
DO  - 10.3133/ofr93105
UR  - https://pubs.usgs.gov/publication/ofr93105
ID  - ofr93105
ER  -