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- Codes for the Representation of Names of Languages (ISO 639-1)Church Slavic; Old Slavonic; Church Slavonic; Old Bulgarian; Old Church Slavonicle code pour représentation ( ISO 639-1 ) de nom de (d'):slavon d'église; vieux slave; slavon liturgique; vieux bulgare
English-French codes for the representation of names of languages ISO 639-1-2. 2013.