UNFP. (2003). State of world population 2003: Making 1 billion count: investing in adolescents health and rights. United Nations population Fund.
Chicago Style aipamenaUNFP. State of World Population 2003: Making 1 Billion Count: Investing in Adolescents Health and Rights. New York: United Nations population Fund, 2003.
MLA aipamenaUNFP. State of World Population 2003: Making 1 Billion Count: Investing in Adolescents Health and Rights. United Nations population Fund, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.