APA
Ram charan, . (2007). what the customer wants you to know. Haryana: Penguin.
Chicago
Ram charan, . 2007. what the customer wants you to know. Haryana: Penguin.
Harvard
Ram charan, . (2007). what the customer wants you to know. Haryana: Penguin.
MLA
Ram charan, . what the customer wants you to know. Haryana: Penguin. 2007.