Norman, S. (1988). We're in Business: English for Commercial Practice and International Trade. London: Longman.
استشهاد بنمط شيكاغوNorman, Susan. We're in Business: English for Commercial Practice and International Trade. London: Longman, 1988.
MLA استشهادNorman, Susan. We're in Business: English for Commercial Practice and International Trade. London: Longman, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.