TY - RPRT TI - Spectrochemical analysis : optical spectrometry, X-ray fluorescence spectrometry, and electron probe microanalysis techniques June 1964 to June 1965. AU - Scribner, Bourdon F PY - 1965 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS TN 272 DO - 10.6028/NBS.TN.272 ER -