McCarthy, M., & Oï Dell, F. (2008). Academic vocabulary in use: 50 units of academy vocabulary reference and practice. Self-study and classroom use. Cambridge University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)McCarthy, Michael, و Felicity Oï Dell. Academic Vocabulary in Use: 50 Units of Academy Vocabulary Reference and Practice. Self-study and Classroom Use. Cambridge: Cambridge University, 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)McCarthy, Michael, و Felicity Oï Dell. Academic Vocabulary in Use: 50 Units of Academy Vocabulary Reference and Practice. Self-study and Classroom Use. Cambridge University, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.