एपीए उद्धरण

Harvard Business Review. (2009). Harvard lessons learned: Crisis as opportunity.

शिकागो स्टाइल उद्धरण

Harvard Business Review. Harvard Lessons Learned: Crisis as Opportunity. Harvard Business School Press, 2009.

एमएलए उद्धरण

Harvard Business Review. Harvard Lessons Learned: Crisis as Opportunity. 2009.