1. Maxwell J. A., Rock and Mineral Analysis (Interscience, New York 1968), pp. 244–248.
2. Volborth A. V., Elemental Analysis in Geochemistry. A. Major Elements (Elsevier, New York, 1969), pp. 138–141.
3. Determination of Chlorine in Silicate Rocks
4. Boltz D. F., Colorimetric Determination of Nonmetals (Wiley-Interscience, New York, 1958), pp. 161–180.
5. Rapid X-Ray Fluorescence Determination of Sulfur in Mineralized Rocks from the Bingham Mining District, Utah