APA-viite (7. p.)
ebrary, Inc, & Sgall, P. (1992). Variation in language: Code switching in Czech as a challenge for sociolinguistics. J. Benjamins Pub. Co..
Chicago-viite (17. p.)
ebrary, Inc, ja Petr Sgall. Variation in Language: Code Switching in Czech as a Challenge for Sociolinguistics. Amsterdam ; Philadelphia: J. Benjamins Pub. Co., 1992.
MLA-viite (9. p.)
ebrary, Inc, ja Petr Sgall. Variation in Language: Code Switching in Czech as a Challenge for Sociolinguistics. J. Benjamins Pub. Co., 1992.
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