Cita APA (7th ed.)

Zakaria , Z. A. (2001). Obstetric anal sphincter injury: Retrospective review of risk factors.

Cita Chicago (17th ed.)

Zakaria , Zahar Azuar. Obstetric Anal Sphincter Injury: Retrospective Review of Risk Factors. 2001.

Cita MLA (9th ed.)

Zakaria , Zahar Azuar. Obstetric Anal Sphincter Injury: Retrospective Review of Risk Factors. 2001.

Atenció: Aquestes cites poden no estar 100% correctes.