Jones, L., & Alexander, R. (2000). New international business English: Communication skills in English for business purposes : work book (Updated ed.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Jones, Leo, agus Richard Alexander. New International Business English: Communication Skills in English for Business Purposes : Work Book. Updated ed. Cambridge ; New York: Cambridge University Press, 2000.
Lua MLA (8ú heag.)Jones, Leo, agus Richard Alexander. New International Business English: Communication Skills in English for Business Purposes : Work Book. Updated ed. Cambridge University Press, 2000.
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