Não informado. (2009). International Perspectives on Sexual and Reproductive Health. Alan Guttmacher Institute.
Lua i Stíl Chicago (17ú heag.)Não informado. International Perspectives on Sexual and Reproductive Health. New York: Alan Guttmacher Institute, 2009.
Lua MLA (8ú heag.)Não informado. International Perspectives on Sexual and Reproductive Health. Alan Guttmacher Institute, 2009.
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