Tough, J. (1977). The development of meaning: A study of children's use of language. Allen and Unwin.
Citace podle Chicago (17th ed.)Tough, Joan. The Development of Meaning: A Study of Children's Use of Language. London: Allen and Unwin, 1977.
Citace podle MLA (8th ed.)Tough, Joan. The Development of Meaning: A Study of Children's Use of Language. Allen and Unwin, 1977.
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