Não informado. (1971). Language Speech and Hearing Services in Schools. American Speech-Language-Hearing Association.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Language Speech and Hearing Services in Schools. Washington: American Speech-Language-Hearing Association, 1971.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Language Speech and Hearing Services in Schools. American Speech-Language-Hearing Association, 1971.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.