| 000 | 00458 a2200157 4500 | ||
|---|---|---|---|
| 080 |
_a577.4(03) _bE 19 |
||
| 245 | 1 |
_aEncyclopaedia of environmental sciences _cedited by P.R. Trivedi and Gurdeep Raj |
|
| 260 |
_aNew Delhi _bAkashdeep Publishing House _c1992 |
||
| 650 | _aEnvironmental Sciences | ||
| 700 | _aTrivedi, P.R., ed. | ||
| 700 | _aRaj, Gurdeep, ed. | ||
| 500 | _aVol. 25 : Water pollution | ||
| 100 |
_a _d |
||
| 300 | _a304 p. | ||
| 901 | _a199819 | ||
| 999 |
_c70842 _d70842 |
||