Jones, L., & Alexander, R. (1989). International Business English: Communication Skills in English for Business Purposes, Student"s Book. Cambridge: Cambridge University.
استشهاد بنمط شيكاغوJones, Leo, و Richard Alexander. International Business English: Communication Skills in English for Business Purposes, Student"s Book. Cambridge: Cambridge University, 1989.
MLA استشهادJones, Leo, و Richard Alexander. International Business English: Communication Skills in English for Business Purposes, Student"s Book. Cambridge: Cambridge University, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.