Cita APA (7a ed.)

Kumar, V., & Reinartz, W. (2012). Customer relationship management: Concept, strategy and tools (2nd ed.). Springer.

Cita Chicago Style (17a ed.)

Kumar, V., y Werner Reinartz. Customer Relationship Management: Concept, Strategy and Tools. 2nd ed. Heidelberg: Springer, 2012.

Cita MLA (8a ed.)

Kumar, V., y Werner Reinartz. Customer Relationship Management: Concept, Strategy and Tools. 2nd ed. Springer, 2012.