Zickefoose, Chuck Anaerobic sludge digestion : operations manual/ by Chuck Zickefoose, and R. B. Joe HAyes - Washington : United States Government Printing Office, 1976 - Various pagings : ill. ; 27 cm. MO-11 Subjects--Topical Terms: Water reuse--CongressesWater reuse Dewey Class. No.: 363.7284