APA aipamena

Ennis, M., & Vincent, C. (1990). Obstetric accidents: A review of 64 cases.

Chicago Style aipamena

Ennis, M., and C. Vincent. Obstetric Accidents: A Review of 64 Cases. 1990.

MLA aipamena

Ennis, M., and C. Vincent. Obstetric Accidents: A Review of 64 Cases. 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.