Cita APA (7th ed.)
Krakor, R. (2012). Endoscopic mitral valve surgery: Handbook of minimal-invasive cardiac surgery. Walter de Gruyter.
Cita Chicago (17th ed.)
Krakor, Ralf. Endoscopic Mitral Valve Surgery: Handbook of Minimal-invasive Cardiac Surgery. Berlin: Walter de Gruyter, 2012.
Cita MLA (9th ed.)
Krakor, Ralf. Endoscopic Mitral Valve Surgery: Handbook of Minimal-invasive Cardiac Surgery. Walter de Gruyter, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.