000 00363nam a2200133Ia 4500
008 161018s9999 xx 000 0 und d
020 _a8187721685
100 _aJohntjo And Ramana, Kvs
_91897
245 _aPrinciples Of Environmental Science And Engineering,
250 _a0Ed
260 _bAnuradha Agencies, Kumbakonam
300 _a85p.
_bRs:75
490 _a5070
999 _c5070
_d5070