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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWorld Health Organization এবং World Health Organization. Reproductive Health and Research. Managing Complications in Pregnancy and Childbirth: A Guide for Midwives and Doctors. Geneva: World Health Organization, Dept. of Reproductive Health and Research, 2003.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিWorld Health Organization এবং World Health Organization. Reproductive Health and Research. Managing Complications in Pregnancy and Childbirth: A Guide for Midwives and Doctors. World Health Organization, Dept. of Reproductive Health and Research, 2003.