Não informado. (1961). Journal of Obstetrics and Gynaecology of the British Commonwealth. Royal College of Obstetricians and Gynaecologists.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Journal of Obstetrics and Gynaecology of the British Commonwealth. London: Royal College of Obstetricians and Gynaecologists, 1961.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Journal of Obstetrics and Gynaecology of the British Commonwealth. Royal College of Obstetricians and Gynaecologists, 1961.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.