Riordan, D. C. (2003). “I'm sorry for your trouble”. BMJ Publishing Group Ltd.
Chicago Style CitationRiordan, Daniel C. “I'm Sorry for Your Trouble”. BMJ Publishing Group Ltd, 2003.
Cita MLARiordan, Daniel C. “I'm Sorry for Your Trouble”. BMJ Publishing Group Ltd, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.