Fill, C. (2005). Business-to-business marketing: Relationships, systems and communications. New York: Prentice Hall.
Παραπομπή Chicago StyleFill, Chris. Business-to-business Marketing: Relationships, Systems and Communications. New York: Prentice Hall, 2005.
Παραπομπή MLAFill, Chris. Business-to-business Marketing: Relationships, Systems and Communications. New York: Prentice Hall, 2005.
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