1. Rich , E. D. Water chlorination. Michigan State-Board of Health 1917
2. Zinc pipes for plumbing;Rinck;Zeit, für Unters, d. Nahr u. genussmittal,1914
3. U. S. Public Health Service Drinking water standards; standards adopted by Treasury Dept. 1925 693 721
4. Thresh , J. C. Interpretation of results of chemical examinations Examination of Waters and Water Supplies 1904 66 85
5. Frederick , R. C. Forster , Aquila Public Health Chemical Analysis London Constable 1920 106