1. A survey of fungi and some indicator bacteria in chlorinated water of indoor public swimming pools.761;Aho;Zentralbl. Bakteriol. Hyg., Abt. Orig. Reihe B,1981
2. “Microbial Ecology.”;Alexander,1971
3. Control of iron and sulfur organisms by super-chlorination and de-chlo-rination;Alexander;Am. Water Works Assoc.,1974
4. Microbiology of ground waters;Allen;J. Water Pollut. Control Fed.,1978