Não informado. (2003). Perspectives on Sexual and Reproductive Health. Alan Guttmacher Institute.
Chicago-referens (17:e uppl.)Não informado. Perspectives on Sexual and Reproductive Health. New York: Alan Guttmacher Institute, 2003.
MLA-referens (8:e uppl.)Não informado. Perspectives on Sexual and Reproductive Health. Alan Guttmacher Institute, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.