"Groundwater." . . "Asociación Internacional de Hidrogeólogos." . . "karotaža vodnjakov." . . "Grundwasserbildung." . . "Hydrogeology." . . "Diagraphies." . . "Grundwasser." . . "Bohrlochmessung." . . "Prospezione geologica." . . . . . . . . . . . . . . . . . . . . "Well logging in groundwater development" . . . "Well logging in groundwater development : [contribution to Unesco International hydrogeological programme, IHP]" . . . . . . . . . . . . "Well logging in groundwater [ground water] development" . . . . . . . "well logging in groundwater development" . . . "Idrologia." . . "Aguas subterráneas." . . "Hydrogéologie." . . . . "Hidrogeología." . . "Eaux souterraines Mesure." . . "Acque sotterranee." . .