Chiswick, B. R., & Miller, P. W. (2007). The economics of language: International analyses (1a. ed.). Routledge.
Lua i Stíl Chicago (17ú heag.)Chiswick, Barry R., agus Paul W. Miller. The Economics of Language: International Analyses. 1a. ed. Londres: Routledge, 2007.
Lua MLA (9ú heag.)Chiswick, Barry R., agus Paul W. Miller. The Economics of Language: International Analyses. 1a. ed. Routledge, 2007.
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