World Health Organization. Reproductive Health and Research. (2002). Selected practice recommendations for contraceptive use. Reproductive Health and Research, Family and Community Health, World Health Organization.
Chicago Style (17th ed.) CitationWorld Health Organization. Reproductive Health and Research. Selected Practice Recommendations for Contraceptive Use. Geneva: Reproductive Health and Research, Family and Community Health, World Health Organization, 2002.
MLA引文World Health Organization. Reproductive Health and Research. Selected Practice Recommendations for Contraceptive Use. Reproductive Health and Research, Family and Community Health, World Health Organization, 2002.
警告：这些引文格式不一定是100％准确.