Cita APA (7th ed.)

Christopher, M. (1991). Relationship marketing: Bringing quality customer service and marketing together. Butterworth-Heinemann.

Cita Chicago (17th ed.)

Christopher, Martin. Relationship Marketing: Bringing Quality Customer Service and Marketing Together. Oxford: Butterworth-Heinemann, 1991.

Cita MLA (9th ed.)

Christopher, Martin. Relationship Marketing: Bringing Quality Customer Service and Marketing Together. Butterworth-Heinemann, 1991.