| 000 | 00312nam a22001097a 4500 | ||
|---|---|---|---|
| 999 |
_c157682 _d157682 |
||
| 082 |
_a _b |
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| 245 | _aThe effect of environmental process variables on school achievement/ | ||
| 260 |
_aNew Delhi: _bNational Council of Educational Research and Training, _c1985. |
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| 300 | _a438p. | ||
| 650 | _a | ||
| 942 | _cBK | ||