Craven, R. (2002). Customer is king: How to exceed their expectations. Virgin Books.
芝加哥风格引文Craven, Robert. Customer Is King: How to Exceed Their Expectations. London: Virgin Books, 2002.
MLA引文Craven, Robert. Customer Is King: How to Exceed Their Expectations. Virgin Books, 2002.
警告：这些引文格式不一定是100％准确.