Upper Silesian
[également appelé Silesian, ślōnskŏ gŏdka, ślōnski, ślōnskŏ mŏwa, Śląski, Szlonzok]Classification : Indo-European
·vulnérable
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Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/
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Silesian Language . (2012) · Wikipedia. http://en.wikipedia.org/wiki/Silesian_language
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Polish National Census . (2002) ·