Dyfyniad APA
World Health Organization. Reproductive Health and Research & ebrary, Inc. (2009). Medical eligibility criteria for contraceptive use (4th ed.). Reproductive Health and Research, World Health Organization.
Dyfyniad Arddull Chicago
World Health Organization. Reproductive Health and Research and Inc ebrary. Medical Eligibility Criteria for Contraceptive Use. 4th ed. Geneva: Reproductive Health and Research, World Health Organization, 2009.
Dyfyniad MLA
World Health Organization. Reproductive Health and Research and Inc ebrary. Medical Eligibility Criteria for Contraceptive Use. 4th ed. Reproductive Health and Research, World Health Organization, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.