European Federation of National Institutions for Language. Conference, ebrary, Inc, Stickel, G., & Carrier, M. (2012). Language education in creating a multilingual Europe: Contributions to the annual conference 2011 of EFNIL in London. Lang.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)European Federation of National Institutions for Language. Conference, Inc ebrary, Gerhard Stickel, و Michael Carrier. Language Education in Creating a Multilingual Europe: Contributions to the Annual Conference 2011 of EFNIL in London. Frankfurt am Main ; New York: Lang, 2012.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)European Federation of National Institutions for Language. Conference, et al. Language Education in Creating a Multilingual Europe: Contributions to the Annual Conference 2011 of EFNIL in London. Lang, 2012.