European Federation of National Institutions for Language. Conference, ebrary, Inc, & Stickel, G. (2010). Language use in business and commerce in Europe: Contributions to the annual conference 2008 of EFNIL in Lisbon. Peter Lang.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEuropean Federation of National Institutions for Language. Conference, Inc ebrary, और Gerhard Stickel. Language Use in Business and Commerce in Europe: Contributions to the Annual Conference 2008 of EFNIL in Lisbon. Frankfurt am Main ; New York: Peter Lang, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEuropean Federation of National Institutions for Language. Conference, et al. Language Use in Business and Commerce in Europe: Contributions to the Annual Conference 2008 of EFNIL in Lisbon. Peter Lang, 2010.
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