Eurovoc, il thesaurus multilingue dell'Unione europea European Communities 2011-01-02 2012-11-18 15:26:03 it geoscienze геологични науки vědy o Zemi Geowissenschaften γεωλογικές επιστήμες earth sciences ciencias de la tierra sciences de la terre aardkunde nauki o ziemi ciências da Terra geovetenskap 2011-01-02 15:10:11