О решении арифметических задач в педагогических училищах
| Main Author: | |
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| Format: | Book |
| Language: | Russian |
| Published: |
М
Изд-во Акад. пед. наук РСФСР
1951
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| Subjects: |
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | Russian |
| Published: |
М
Изд-во Акад. пед. наук РСФСР
1951
|
| Subjects: |