| 000 | 00435nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 190328s9999||||xx |||||||||||||| ||und|| | ||
| 040 |
_aNITIL _cNITIL |
||
| 082 |
_221st _a574.52607 _bV996P |
||
| 100 | _aVyas, Harish Chandra | ||
| 245 | 0 |
_aParyavaran shiksha _cHarish Chandra Vyas |
|
| 260 |
_aNew Delhi _bVidya Vihar _c1992 |
||
| 300 | _a288p. | ||
| 650 | _aEnvironmental education; Ecology; Air-Pollution; Water-Pollution | ||
| 942 | _cBKS | ||
| 999 |
_c9978 _d9978 |
||