Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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