APA引文

Singh, P., & Kumar, J. N. (2009). customer relationship management (CRM). Regal.

Chicago Edition Citation

Singh, P.P, and Jinender N. Kumar. Customer Relationship Management (CRM). New Delhi: Regal, 2009.

MLA引文

Singh, P.P, and Jinender N. Kumar. Customer Relationship Management (CRM). Regal, 2009.

警告：這些引文格式不一定是100％准確.