Charan, R. (2007). What the Customer Wants You to Know. Portfolio/Penguin.
芝加哥风格引文Charan, Ram. What the Customer Wants You to Know. Gururgram: Portfolio/Penguin, 2007.
MLA引文Charan, Ram. What the Customer Wants You to Know. Portfolio/Penguin, 2007.
警告：这些引文格式不一定是100％准确.