Não informado. (1971). Language Speech and Hearing Services in Schools. American Speech-Language-Hearing Association.
Citace podle Chicago (17th ed.)Não informado. Language Speech and Hearing Services in Schools. Washington: American Speech-Language-Hearing Association, 1971.
Citace podle MLA (8th ed.)Não informado. Language Speech and Hearing Services in Schools. American Speech-Language-Hearing Association, 1971.
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