APA-viite (7. p.)

Charan, R. (2008). What the Customer Wants You to Know. Penguin Group.

Chicago-viite (17. p.)

Charan, Ram. What the Customer Wants You to Know. New Delhi: Penguin Group, 2008.

MLA-viite (9. p.)

Charan, Ram. What the Customer Wants You to Know. Penguin Group, 2008.