Grewal Dhruv, & Levy Michael. (2007). Marketing (In lần thứ 1.). American: McGraw-Hill.
Παραπομπή Chicago StyleGrewal Dhruv, και Levy Michael. Marketing. In lần thứ 1. American: McGraw-Hill, 2007.
Παραπομπή MLAGrewal Dhruv, και Levy Michael. Marketing. In lần thứ 1. American: McGraw-Hill, 2007.
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