000 00286nam a2200121Ia 4500
999 _c32169
_d32169
100 _aSurinder Deswal
245 _aBasic Course in Environmental Studies
250 _a1
260 _c2004
_bDHANPAT RAI & CO.
_aDelhi
300 _axv+7.36+vii
700 _aAnupama Deswal.
942 _cBB