World Health Organization. Reproductive health indicators.
芝加哥风格引文World Health Organization. Reproductive Health Indicators.
MLA引文World Health Organization. Reproductive Health Indicators.
警告：这些引文格式不一定是100％准确.
APA引文
World Health Organization. Reproductive health indicators.
芝加哥风格引文World Health Organization. Reproductive Health Indicators.
MLA引文World Health Organization. Reproductive Health Indicators.