| 000 | 00429nas a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 140329n ii |||gr||||Z||||||eng | ||
| 082 | _a370.5 | ||
| 100 | _eAuthor. | ||
| 245 | 0 |
_aEducational Research Vol.16 _hBound Volumes |
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| 260 |
_aAgra _bNational Foundation for Educational Research _c1973-74. |
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| 300 | _a240. | ||
| 653 | _aEducation | ||
| 942 |
_2ddc _cBV |
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| 999 |
_c67834 _d67834 |
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