Laughing and crying of preschool children ; study of the social and emotional behaviro of young children as indicated by laughing and crying
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| Định dạng: | Sách |
| Ngôn ngữ: | English |
| Được phát hành: |
New York City
Teachers college
Columbia university, 1934.
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| Loạt: | Half-title: Child development monographs. Monograph no. 14
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| Những chủ đề: |