Sommers, M. (2007). Marketing: A customer centric approach. McGraw-Hill.
Trích dẫn kiểu ChicagoSommers, Montrose. Marketing: A Customer Centric Approach. McGraw-Hill, 2007.
MLA citiranjeSommers, Montrose. Marketing: A Customer Centric Approach. McGraw-Hill, 2007.
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