Alkema, L., & Chou, D. (2014). Trends in maternal mortality: 1990 to 2013. estimates by WHO, UNICEF, UNFPA, The World Bank and the United Nations Population Division. World Health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAlkema, Leontine, और Doris Chou. Trends in Maternal Mortality: 1990 to 2013. Estimates by WHO, UNICEF, UNFPA, The World Bank and the United Nations Population Division. Geveva, Switzerland: World Health Organization, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAlkema, Leontine, और Doris Chou. Trends in Maternal Mortality: 1990 to 2013. Estimates by WHO, UNICEF, UNFPA, The World Bank and the United Nations Population Division. World Health Organization, 2014.
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