Polish language

found: Campbell, G.L. Compendium of the world's languages, 2000:v. 2, p. 1355 ("Polish is usually regarded as the sole survivor of the Lechitic subgroup of West Slavonic languages, though some authorities treat the dialect form known as Kashubian as a separate language")

found: Facts about the world's languages, 2001:p. 556 (Polish dialects include Kashubian; some scholars consider Kashubian to be a separate language, not mutually intelligible with other Polish dialects)

found: Ethnologue, via WWW, May 14, 2004(Polish: a language of Poland. Alternate names: Polski, Polnisch. Dialects: Upper Silesian. Classification: Indo-European, Slavic, West, Lechitic. Also spoken in Australia, Austria, Azerbaijan, Belarus, Canada, Czech Republic, Estonia, Finland, Germany, Hungary, Israel, Kazakhstan, Latvia, Lithuania, Romania, Russia (Europe), Slovakia, Ukraine, UAE, USA)