UNFPA. (2009). Adding it up: The costs and benefits of investing in family planning and maternal newborn health.
Chicago-viite (17. p.)UNFPA. Adding It Up: The Costs and Benefits of Investing in Family Planning and Maternal Newborn Health. 2009.
MLA-viite (8. p.)UNFPA. Adding It Up: The Costs and Benefits of Investing in Family Planning and Maternal Newborn Health. 2009.
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