World Health Organization. (2002). Research on reproductive Health at WHO: Biennial Report 2000-2001. World Health Organization.
Chicago-viite (17. p.)World Health Organization. Research on Reproductive Health at WHO: Biennial Report 2000-2001. Geneva: World Health Organization, 2002.
MLA-viite (8. p.)World Health Organization. Research on Reproductive Health at WHO: Biennial Report 2000-2001. World Health Organization, 2002.
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