濒危语言项目

3rd	2010	Atlas of the World’s Languages in Danger		UNESCO Publishing	Paris	http://www.unesco.org/culture/en/endangeredlanguages/atlas	Christopher Moseley (ed.)	Moseley, Christopher (ed.). 2010. Atlas of the World’s Languages in Danger, 3rd edn. http://www.unesco.org/culture/en/endangeredlanguages/atlas. (03 June, 2011.)	ll_pub	2,000		1000-9999		Threatened (20 percent certain, based on the evidence available)		11.1433,29.8306
		World Oral Literature Project				http://www.oralliterature.org		"World Oral Literature Project." Online: http://www.oralliterature.org.		2,000		1000-9999		Threatened (20 percent certain, based on the evidence available)
16	2009	Ethnologue: Languages of the World, 16th Edition (2009)	M. Paul Lewis	SIL International	Dallas, TX	http://www.ethnologue.com/		Lewis, M. Paul (ed.). 2009. Ethnologue: Languages of the World, 16 edn. http://www.ethnologue.com/home.asp. (15 February, 2011.)	ll_pub	2,000	1971	1000-9999	2,000 (Welmers 1971)	Threatened (20 percent certain, based on the evidence available)	Sudan;

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