Helping children learn a concept of elementary-school method
| Egile nagusia: | |
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| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | ingelesa |
| Argitaratua: |
Yonkers-Hudson, N. Y.
World Book Co.
1955.
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| Saila: | World Book Company professional books in education
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| Gaiak: |