APA aipamena

Clarke, R., & McGuigan, J. (2003). Howard Morris Stevenson. BMJ Publishing Group Ltd.

Chicago Style aipamena

Clarke, Richard, and Jim McGuigan. Howard Morris Stevenson. BMJ Publishing Group Ltd, 2003.

MLA aipamena

Clarke, Richard, and Jim McGuigan. Howard Morris Stevenson. BMJ Publishing Group Ltd, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.