W. L. Hill Charles. (1997). International Business Competing in the Global Marketplace (In lần thứ 1.). American: Higher Education Group.
استشهاد بنمط شيكاغوW. L. Hill Charles. International Business Competing in the Global Marketplace. In lần thứ 1. American: Higher Education Group, 1997.
MLA استشهادW. L. Hill Charles. International Business Competing in the Global Marketplace. In lần thứ 1. American: Higher Education Group, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.