balena
52AMBJENT- MT
5211ambjent naturali - BT1 mammiferu marin
- BT2 mammiferu salvaġġ
- BT3 fawna
- BT4 organiżmi salvaġġi
Mapping
- EXM agrovoc: Agrovoc (FAO - Food and Agriculture Organization)
- EXM gemet: GEMET (GEneral Multilingual Environmental Thesaurus - EEA)
- EXM zbw: ZBW (Thesaurus for Econmics)
Maltese)