Cita APA (7a ed.)

Kostojohn, S., Johnson, M., & Paulen, B. (2011). CRM fundamentals (1st ed. 2011.). Apress.

Cita Chicago Style (17a ed.)

Kostojohn, Scott, Mathew Johnson, y Brian Paulen. CRM Fundamentals. 1st ed. 2011. [Berkeley, Calif.]: Apress, 2011.

Cita MLA (9a ed.)

Kostojohn, Scott, et al. CRM Fundamentals. 1st ed. 2011. Apress, 2011.