http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Analytical precision of one-sixth order semiquantitative spectrographic analysis
1 online resource (iii, 25 pages) : illustrations.
"Superimposed frequency diagrams represent precision for low, medium, and concentrations of 30 elements routinely determined by Denver-based mobile spectrographic laboratories."
Includes bibliographical references (page 4).