References Treccani.itTreccani.it: Enciclopedia, Vocabolario
; ; ZinZingarelli, Nicola, Lo Zingarelli 2021. Vocabolario della lingua italiana. 12. ed., rist., 2021.
; AGROVOCFAO <Food and Agriculture Organization of the United Nations> AGROVOC Multilingual thesaurus
; ; AVIAvibase. The world bird database, 2023, vers. in italiano
; ; NALTUSDA <United States department of agriculture> - National agricultural library - Inter-American institute for cooperation on agriculture, National Agricultural Library Thesaurus Concept Space
; Wikipedia(IT)Wikipedia. L'enciclopedia libera, 2001 [ed. in lingua italiana dell' enciclopedia online Wikipedia]
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