Morris, J. K., & Alberman, E. (2009). Trends in Down’s syndrome live births and antenatal diagnoses in England and Wales from 1989 to 2008: Analysis of data from the National Down Syndrome Cytogenetic Register. BMJ Publishing Group Ltd.
استشهاد بنمط شيكاغوMorris, Joan K., و Eva Alberman. Trends in Down’s Syndrome Live Births and Antenatal Diagnoses in England and Wales From 1989 to 2008: Analysis of Data From the National Down Syndrome Cytogenetic Register. BMJ Publishing Group Ltd, 2009.
MLA استشهادMorris, Joan K., و Eva Alberman. Trends in Down’s Syndrome Live Births and Antenatal Diagnoses in England and Wales From 1989 to 2008: Analysis of Data From the National Down Syndrome Cytogenetic Register. BMJ Publishing Group Ltd, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.