Cita APA (7a ed.)

Não informado. (1977). Current problems in obstetrics and gynecology. Year Book Medical Publishers.

Cita Chicago Style (17a ed.)

Não informado. Current Problems in Obstetrics and Gynecology. Chicago, Ill: Year Book Medical Publishers, 1977.

Cita MLA (8a ed.)

Não informado. Current Problems in Obstetrics and Gynecology. Year Book Medical Publishers, 1977.

Precaución: Estas citas no son 100% exactas.