[Subterranean waters: problems connected with their use as drinking water and with the study of their microbial contamination].
D001419:Bacteria; D014780:Viruses; D014871:Water Microbiology; D014876:Water Pollution; D014881:Water Supply
Le acque sotterranee: problemi connessi con la loro utilizzazione a scopo potabile e con lo studio della loro contaminazione microbica.