Gummesson, E.. (2002). 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 (2nd ed.). 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. 2nd ed. Oxford Boston, MA: Butterworth-Heinemann, 2002.
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. 2nd ed. Butterworth-Heinemann, 2002.