Michael E.Porter. (1998). Competitive Strategy (NA.). A Division of Simon & Schuster, Inc.
芝加哥风格引文Michael E.Porter. Competitive Strategy. NA. New York: A Division of Simon & Schuster, Inc, 1998.
MLA引文Michael E.Porter. Competitive Strategy. NA. A Division of Simon & Schuster, Inc, 1998.
警告：这些引文格式不一定是100％准确.