Não informado. (1936). Child. Childrens Bureau, Department of Health, Education and Welfare.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Child. Washington: Childrens Bureau, Department of Health, Education and Welfare, 1936.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Child. Childrens Bureau, Department of Health, Education and Welfare, 1936.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.