000 | 00383nam a2200145Ia 4500 | ||
---|---|---|---|
008 | 170101s2004 xx 000 0 und d | ||
082 | _a363.7 D38E | ||
100 | _aDHALIWAL, G. S. | ||
245 | 0 | _aEssentials of environmental sciences | |
260 |
_bLudhiana _c2004 |
||
300 | _a269p. | ||
650 | _aENVIRONMENTAL PROTECTION | ||
653 | _aENVIRONMENTAL PROTECTION | ||
942 |
_2ddc _cB _03 |
||
999 |
_c132455 _d132455 |