title: [GROUP WATER SUPPLY FOR POPULATION POINTS AND THEIR SANITARY SUPERVISION IN THE PEOPLE'S REPUBLIC OF BULGARIA].
mesh_terms: D002031:Bulgaria; D014881:Water Supply
keywords: BULGARIA; WATER SUPPLY
vernacular_title: GRUPPOVOE VODOSNABZHENIE NASELENNYKH PUNKTOV I SANITARNY I NADZOR ZA NIM V NARODNO I RESPUBLIKE BOLGARII.