| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c11344 _d11344 |
||
| 005 | 20210901150834.0 | ||
| 008 | 210901b xxu||||| |||| 00| 0 eng d | ||
| 082 | _a577.14 GUP | ||
| 100 | _aGupta,R.D. | ||
| 100 | _aSingh,K.V. | ||
| 245 | _aEnvironmental Studies | ||
| 250 | _a1st ed. | ||
| 260 |
_aMeerut _bR.Lal Book Depot _c2005 |
||
| 300 | _aXII,291p. | ||
| 942 |
_2ddc _cDB |
||