000 | 00318nam a2200121Ia 4500 | ||
---|---|---|---|
008 | 221226s9999 xx 000 0 und d | ||
020 | _a8171691129 | ||
041 | _aeng | ||
082 |
_a333.7 _bSET |
||
100 |
_aSethi, M S _91420337 |
||
245 | _aUnderstanding Our Environment | ||
260 |
_aNew Delhi _bCommonwealth Publishers |
||
999 |
_c916500 _d916500 |