000 | 00323nam a2200133Ia 4500 | ||
---|---|---|---|
008 | 220201s2017 xx 000 0 eng d | ||
082 |
_a628.1 _bCHA |
||
100 | _aChawla,Shashi | ||
245 | 2 | _aA textbook of environmental studies | |
250 | _a9th rep. | ||
260 |
_aDelhi _bMcgraw Hill _c2017 |
||
300 | _aI.8 | ||
942 | _2ddc | ||
999 |
_c37796 _d37796 |