APA
Gosney J. W. &. o., . (2001). Customer Relationship Management Essentials. New Delhi: PHI.
Chicago
Gosney John W & other, . 2001. Customer Relationship Management Essentials. New Delhi: PHI.
Harvard
Gosney J. W. &. o., . (2001). Customer Relationship Management Essentials. New Delhi: PHI.
MLA
Gosney John W & other, . Customer Relationship Management Essentials. New Delhi: PHI. 2001.