Não informado. (2016). The Year Book of Obstetrics and Gynecology. Year Book Medical Publishers.
Chicago-viite (17. p.)Não informado. The Year Book of Obstetrics and Gynecology. Chicago, Ill: Year Book Medical Publishers, 2016.
MLA-viite (8. p.)Não informado. The Year Book of Obstetrics and Gynecology. Year Book Medical Publishers, 2016.
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