APA Citation

Magretta, J., & Joan Magretta. Understanding Michael Porter: The essential guide to competition and strategy. Boston, Mass: Harvard Business Review Press.

Chicago Style Citation

Magretta, Joan, and Joan Magretta. Understanding Michael Porter: The Essential Guide to Competition and Strategy. Boston, Mass: Harvard Business Review Press.

MLA Citation

Magretta, Joan, and Joan Magretta. Understanding Michael Porter: The Essential Guide to Competition and Strategy. Boston, Mass: Harvard Business Review Press.

Warning: These citations may not always be 100% accurate.