000 00291nam a2200121Ia 4500
999 _c59528
_d59528
020 _a9788190892018
082 _a333.7(H) SUP/P
100 _a Supriya Sarkar
245 0 _aParyavaran : Prabhandhan
260 _aNew Delhi
_bSaketh Prakashan
_c2013
650 _aEnvironment
942 _cBK