Breuer, E. O. (2015). First language versus foreign language: Fluency, errors and revision processes in foreign language academic writing (Peter Lang edition.). Peter Lang.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Breuer, Esther Odilia. First Language Versus Foreign Language: Fluency, Errors and Revision Processes in Foreign Language Academic Writing. Peter Lang edition. Frankfurt am Main ; New York: Peter Lang, 2015.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Breuer, Esther Odilia. First Language Versus Foreign Language: Fluency, Errors and Revision Processes in Foreign Language Academic Writing. Peter Lang edition. Peter Lang, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.