References Treccani.itTreccani.it: Enciclopedia, Vocabolario
; EncBThe New encyclopaedia Britannica, 15. ed., Chicago [etc.], Encyclopaedia Britannica, 1986. 32 v. + Supplement (1994).
; ZinZingarelli, Nicola, Lo Zingarelli 2021. Vocabolario della lingua italiana. 12. ed., rist., 2021.
(voce: Encefalopatia spongiforme bovina); CABCommonwealth agricultural bureaux International, CAB Thesaurus
; ; ; NALTUSDA <United States department of agriculture> - National agricultural library - Inter-American institute for cooperation on agriculture, National Agricultural Library Thesaurus Concept Space
; IATEComunità Europea, IATE, European Union terminology
; ; Wikipedia(IT)Wikipedia. L'enciclopedia libera, 2001 [ed. in lingua italiana dell' enciclopedia online Wikipedia]
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