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161 - Problems of Soviet School Education - page 161 |
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162 - Problems of Soviet School Education - page 162 |
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163 - Problems of Soviet School Education - page 163 |
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164 - Problems of Soviet School Education - page 164 |
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165 - Problems of Soviet School Education - page 165 |
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166 - Problems of Soviet School Education - page 166 |
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167 - Problems of Soviet School Education - page 167 |
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168 - Problems of Soviet School Education - page 168 |
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169 - Problems of Soviet School Education - page 169 |
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170 - Problems of Soviet School Education - page 170 |