Dyfyniad APA

World Health Organization. (2010). Medical eligibility criteria for contraceptive use. World Health Organization.

Dyfyniad Arddull Chicago

World Health Organization. Medical Eligibility Criteria for Contraceptive Use. Geneva, Switzerland: World Health Organization, 2010.

Dyfyniad MLA

World Health Organization. Medical Eligibility Criteria for Contraceptive Use. World Health Organization, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.