एपीए उद्धरण

Harvard Business School Press. (2006). The essentials of strategy. Harvard Business School.

शिकागो स्टाइल उद्धरण

Harvard Business School Press. The Essentials of Strategy. Boston: Harvard Business School, 2006.

एमएलए उद्धरण

Harvard Business School Press. The Essentials of Strategy. Harvard Business School, 2006.