Nuovo soggettario BNCF Biblioteca Nazionale Centrale Firenze Ministero della Cultura
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             • • • • • • • • • Organismi
            • • • • • • • • [Organismi diversi da vegetali, animali, umani]
           • • • • • • • Procarioti
          • • • • • • Batteri
         • • • • • Proteobacteria
        • • • • Proteobacteria gamma
       • • • Enterobacteriales
      • • Enterobacteriaceae
     • Shigelle
    ►Shigella dysenteriae