Gummesson, E. (2003). Total relationship marketing: Marketing strategy moving from the 4Ps - product, price, promotion, place - of traditional marketing management to the 30Rs - the thirty relationships - of a new marketing paradigm (2. ed., repr.). Butterworth-Heinemann.
Chicago Style (17th ed.) CitationGummesson, Evert. Total Relationship Marketing: Marketing Strategy Moving from the 4Ps - Product, Price, Promotion, Place - of Traditional Marketing Management to the 30Rs - the Thirty Relationships - of a New Marketing Paradigm. 2. ed., repr. Amsterdam [u.a.]: Butterworth-Heinemann, 2003.
MLA (9th ed.) CitationGummesson, Evert. Total Relationship Marketing: Marketing Strategy Moving from the 4Ps - Product, Price, Promotion, Place - of Traditional Marketing Management to the 30Rs - the Thirty Relationships - of a New Marketing Paradigm. 2. ed., repr. Butterworth-Heinemann, 2003.