Não informado. (1973). European Journal of Obstetrics & Gynecology and Reproductive Biology. Elsevier Science Publishers.
Cita Chicago Style (17a ed.)Não informado. European Journal of Obstetrics & Gynecology and Reproductive Biology. Amsterdam: Elsevier Science Publishers, 1973.
Cita MLA (8a ed.)Não informado. European Journal of Obstetrics & Gynecology and Reproductive Biology. Elsevier Science Publishers, 1973.
Precaución: Estas citas no son 100% exactas.