TY  - RPRT
TI  - Report of the U.S. Geological Survey's analytical evaluation program; standard reference water samples M-82 (major constituents), T-83 (trace constituents), N-8 (nutrients), and P-2 (precipitation snowmelt)
AU  - V.J. Janzer
PY  - 1983
DO  - 10.3133/ofr83864
UR  - https://pubs.usgs.gov/publication/ofr83864
ID  - ofr83864
ER  -