Não informado. Annual report on child and youth welfare. United Nations, Department of Social Affairs.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Annual Report on Child and Youth Welfare. Geneva, Suíça: United Nations, Department of Social Affairs.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Annual Report on Child and Youth Welfare. United Nations, Department of Social Affairs.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.