Comrie, B. (2009). The World's major languages (2nd ed.). Routledge.
Lua i Stíl Chicago (17ú heag.)Comrie, Bernard. The World's Major Languages. 2nd ed. London: Routledge, 2009.
Lua MLA (8ú heag.)Comrie, Bernard. The World's Major Languages. 2nd ed. Routledge, 2009.
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