Παραπομπή σε μορφή APA (7η εκδ.)

Greenberg, P. (2010). CRM (Customer Relationship Management) at the Speed of Light (4th.). Tata McGraw Hill Education Private Limited.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Greenberg, Paul. CRM (Customer Relationship Management) at the Speed of Light. 4th. New Delhi: Tata McGraw Hill Education Private Limited, 2010.

Παραπομπή σε μορφή MLA (9th εκδ.)

Greenberg, Paul. CRM (Customer Relationship Management) at the Speed of Light. 4th. Tata McGraw Hill Education Private Limited, 2010.