Blackwell, P. M. (1978). Sentences and other systems: A language and learning curriculum for hearing-impaired children. Alexander Graham Bell Association for the Deaf.
Citace podle Chicago (17th ed.)Blackwell, Peter M. Sentences and Other Systems: A Language and Learning Curriculum for Hearing-impaired Children. Washington: Alexander Graham Bell Association for the Deaf, 1978.
Citace podle MLA (8th ed.)Blackwell, Peter M. Sentences and Other Systems: A Language and Learning Curriculum for Hearing-impaired Children. Alexander Graham Bell Association for the Deaf, 1978.
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