1. The necessity of controlling bacterial populations in portable waters: community water supply;Geldreich;J. Am. Wat. Wks Ass.,1972
2. Microbiological study of water-softener resins;Stamm;Appl. Microbiol.,1969
3. Standard Methods for the Examination of Water and Wastewater,1970
4. Physicochemical treatment of wastewater;Weber;J. Wat. Pollut. Control Fed.,1970