Não informado. (1961). Australian and New Zealand Journal of Obstetrics and Gynaecology. Australian and New Zealand, Council of the Royal College of Obstetricians.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Australian and New Zealand Journal of Obstetrics and Gynaecology. Melbourne, Australia: Australian and New Zealand, Council of the Royal College of Obstetricians, 1961.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Australian and New Zealand Journal of Obstetrics and Gynaecology. Australian and New Zealand, Council of the Royal College of Obstetricians, 1961.
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