APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.