APA (7th ed.) Citation

Charan Ram. (2007). What the customer wants you to know: How everybody needs to think differently about sales. Penguin books.

Chicago Style (17th ed.) Citation

Charan Ram. What the Customer Wants You to Know: How Everybody Needs to Think Differently About Sales. London: Penguin books, 2007.

MLA (9th ed.) Citation

Charan Ram. What the Customer Wants You to Know: How Everybody Needs to Think Differently About Sales. Penguin books, 2007.