| 000 | 00353nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 161001s1994 xx 000 0 und d | ||
| 100 | _aKansal,B.D | ||
| 245 | _aResearch in ecology and environmental pollution | ||
| 260 |
_aLudhiana _bPunjab Agriciltural university _c1994 |
||
| 300 | _a207p. | ||
| 650 | _aEnvironmental sciences-research | ||
| 942 |
_2ddc _cC |
||
| 999 |
_c8704 _d8704 |
||