Não informado. (1972). Children today. Administration for Children's and Families.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Children Today. Washington: Administration for Children's and Families, 1972.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Children Today. Administration for Children's and Families, 1972.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.