APA (7th ed.) Citation

Harvard Business Review & Porter, M. E. (1991). Michael E. Porter on competition and strategy. Harvard Business School Press.

Chicago Style (17th ed.) Citation

Harvard Business Review and Michael E. Porter. Michael E. Porter on Competition and Strategy. Boston: Harvard Business School Press, 1991.

MLA (9th ed.) Citation

Harvard Business Review and Michael E. Porter. Michael E. Porter on Competition and Strategy. Harvard Business School Press, 1991.