1. “Manual of Methods for Chemical Analysis of Water and Wastes, EMSL.” USEPA, Cincinnati, OH, 1979. 40
2. “Annual Book of ASTM Standards, Water,” Part 31, ASTM. Philadelphia, PA, 1980.
3. “Standard Methods for the Examination of Water and Waste-water”, 15th ed., American Public Health Assoc., Washington, DC, 1980.
4. “Gas Chromatography with Glass Capillary Columns”, Academic Press, New York (1980).