@article{120872,
      recid = {120872},
      author = {Motooka, J. M. and Grimes, D. J.},
      title = {Analytical precision of one-sixth order semiquantitative  spectrographic analysis /},
      publisher = {U.S. Geological Survey,},
      address = {Denver :},
      pages = {iii, 25 p. :},
      year = {1976},
      abstract = {Superimposed frequency diagrams represent precision for  low, medium, and concentrations of 30 elements routinely  determined by Denver-based mobile spectrographic  laboratories.},
      url = {http://library.usi.edu/record/120872},
}