McCarthy, M., & Oï Dell, F. (2017). English Vocabulary in use: Upper-intermediate. Vocabulary reference and practice with answers and ebook (Fourth Edition.). Cambridge University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)McCarthy, Michael, و Felicity Oï Dell. English Vocabulary in Use: Upper-intermediate. Vocabulary Reference and Practice with Answers and Ebook. Fourth Edition. Cambridge, United Kindgom: Cambridge University Press, 2017.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)McCarthy, Michael, و Felicity Oï Dell. English Vocabulary in Use: Upper-intermediate. Vocabulary Reference and Practice with Answers and Ebook. Fourth Edition. Cambridge University Press, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.