1. Standard Methods for the Examination of Water, Sewage and Industrial Wastes;American Public Health Association,1975
2. Photometric Analysis: Methods of Determining Non-Metals;Babko,1976
3. The Analytical Toxicology of Industrial Inorganic Poisons;Jacobs,1967
4. Formation and stability of metallic complexes in solution;Job;Ann. Chim.,1928