00805nam0-22002771i-450-99000150535040332120030527121816.0000150535FED01000150535(Aleph)000150535FED0100015053520030527d--------km-y0itay50------baengPublic Health EngineeringA textbook of the principles of environmental sanitation.vol. IEarle B.PhelpsNew YorkJohn Wiley1948VII,655 p.22 cmBibl. Ing. SanitariaIGIENEPhelps,Earle B.67517ITUNINARICAUNIMARCBK99000150535040332115 F/7-19DINIDDINIDPublic health engineering376891UNINA