Magretta, J., & Joan Magretta. Understanding Michael Porter: The essential guide to competition and strategy. Boston, Mass: Harvard Business Review Press.
Trích dẫn kiểu ChicagoMagretta, Joan, và Joan Magretta. Understanding Michael Porter: The Essential Guide to Competition and Strategy. Boston, Mass: Harvard Business Review Press.
MLA引文Magretta, Joan, và Joan Magretta. Understanding Michael Porter: The Essential Guide to Competition and Strategy. Boston, Mass: Harvard Business Review Press.
警告：這些引文格式不一定是100％准確.