{"tema_id":"4450","string":"Agua subterr\u00e1nea - Contaminaci\u00f3n","created":"2009-06-17 13:05:31","code":null,"notes":[{"@type":"Nota hist\u00f3rica","@lang":null,"@value":"Se puede usar con un subencabezamiento geogr\u00e1fico. "},{"@type":"Nota bibliogr\u00e1fica","@lang":null,"@value":"556.388\n628.19\n628.39 "}]}