Bales, S. (1998). English in economics and business: English for economics and business students. Ha Noi: Giao duc.
استشهاد بنمط شيكاغوBales, Sarah. English in Economics and Business: English for Economics and Business Students. Ha Noi: Giao duc, 1998.
MLA استشهادBales, Sarah. English in Economics and Business: English for Economics and Business Students. Ha Noi: Giao duc, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.