000 00286nam a22001217a 4500
100 _aSurinder Deswal
245 _a Basic course in Environmental Studies
250 _a2nd
260 _aDelhi
_bDhanpat Rai & Co.
_c2015
300 _axv+8.2+vii
700 _aAnupama Deswal
942 _cBB
999 _c56623
_d56623