Não informado. (1980). Postgraduate Obstetrics & Gynecology. Postgraduate Obstetrics & Gynecology.
Style de citation Chicago (17e éd.)Não informado. Postgraduate Obstetrics & Gynecology. Philadelphia, Pa: Postgraduate Obstetrics & Gynecology, 1980.
Style de citation MLA (8e éd.)Não informado. Postgraduate Obstetrics & Gynecology. Postgraduate Obstetrics & Gynecology, 1980.
Attention : ces citations peuvent ne pas être correctes à 100%.