Surf these sites: Countries - Ethnologue -- Languages of Switzerland. Part of Ethnologue: Languages of the World, 13th Edition; Barbara F. Grimes, Editor; Summer Institute of Linguistics, 1996. Languages in Switzerland -- Language distribution and language relations in Switzerland, by the Swiss Embassy in the US. Mother tongue in Switzerland -- First languages of the Swiss Population: Percentages of the ''National Languages'' German, French, Italian, and Romansh according to the 1990 Census.
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