APA aipamena

Greiver, M. (1999). Practice tips. Emergency contraception. College of Family Physicians of Canada.

Chicago Style aipamena

Greiver, M. Practice Tips. Emergency Contraception. College of Family Physicians of Canada, 1999.

MLA aipamena

Greiver, M. Practice Tips. Emergency Contraception. College of Family Physicians of Canada, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.