{"tema_id":"4527","string":"Carb\u00f3n","created":"2009-06-19 09:22:37","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":"552.574\n553.9 "}]}