APA引文

Porter, M. (2004). Competitive Advantage (1st.). Free Press.

Chicago Style (17th ed.) Citation

Porter, Michael. Competitive Advantage. 1st. Free Press, 2004.

MLA引文

Porter, Michael. Competitive Advantage. 1st. Free Press, 2004.

警告：這些引文格式不一定是100％准確.