Jones, L., & Alexander, R. (2000). International business English: Communication skills in English for business purposes : student's book. Cambridge University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Jones, Leo, و Richard Alexander. International Business English: Communication Skills in English for Business Purposes : Student's Book. Cambridge ; New York: Cambridge University Press, 2000.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Jones, Leo, و Richard Alexander. International Business English: Communication Skills in English for Business Purposes : Student's Book. Cambridge University Press, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.