信息不完整 “Language endangerment in South America: The clock is ticking” (167-234) . Crevels, Mily (2012) , Lyle Campbell and Veronica Grondona · Mouton de Gruyter
濒危
20 percent certain, based on the evidence available
682
682
信息日期
2005
地点
Brazil
信息不完整 “World Oral Literature Project” .
濒危
20 percent certain, based on the evidence available
420
信息不完整 “Ethnologue: Languages of the World, 16th Edition (2009)” . M. Paul Lewis · SIL International
濒危
20 percent certain, based on the evidence available
420
680 (2016).
信息日期
1995
地点
Brazil;
信息不完整 “Atlas of the World’s Languages in Danger” . Christopher Moseley (ed.) (2010) UNESCO Publishing
濒危
20 percent certain, based on the evidence available