एपीए उद्धरण

Ramaraj, R., & Sorrell, V. L. (2008). Degenerative aortic stenosis. BMJ Publishing Group Ltd.

शिकागो स्टाइल उद्धरण

Ramaraj, Radhakrishnan, और Vincent L. Sorrell. Degenerative Aortic Stenosis. BMJ Publishing Group Ltd, 2008.

एमएलए उद्धरण

Ramaraj, Radhakrishnan, और Vincent L. Sorrell. Degenerative Aortic Stenosis. BMJ Publishing Group Ltd, 2008.