1. Statistical Methods in Medical Research;Armitage,1971
2. Super-chlorination at Ottumwa, Iowa;Brown;J. Amer. Water Works Assoc.,1940
3. BMDP-79 Biomedical Computer Programs;Dixon,1979
4. Microbiologic quality and epidemiological aspects of reclaimed water;Grabow;Prog. Water Technol.,1978
5. Epidemiological studies to assess the health effects of reclaimed water consumption by an urban population;Isaäcson;Prog. Water Technol.,1978