Results of the U.S. Geological Survey's second international interlaboratory analytical comparison study : standard reference water samples M-86 (major constituents), T-87 (trace constituents), and P-5 (precipitation snowmelt)
Results of the U.S. Geological Survey's second international interlaboratory analytical comparison study : standard reference water samples M-86 (major constituents), T-87 (trace constituents), and P-5 (precipitation snowmelt) / by Victor J. Janzer