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171
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172
Teaching the number system to intermediate educable mentally retarded pupils through the use of variety of methods
Foilsithe / Cruthaithe 1972Tráchtas -
173
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174
Applications of number theory to numerical analysis. Applications de la thâeorie des nombres âa l'analyse numâerique.
Foilsithe / Cruthaithe 1972LEABHAR -
175
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176
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177
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178
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179
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180


