Cohen, W. A. (2001). How to make it big as a consultant (3rd ed.). AMACOM.
芝加哥风格引文Cohen, William A. How to Make It Big as a Consultant. 3rd ed. New York: AMACOM, 2001.
MLA引文Cohen, William A. How to Make It Big as a Consultant. 3rd ed. AMACOM, 2001.
警告：这些引文格式不一定是100％准确.