000 00369nam a2200157Ia 4500
008 201023s9999||||xx |||||||||||||| ||und||
100 _aWalia,Arvind.
245 0 _aEnvironmental Studies.
260 _bKalyani
_c2011
300 _aQP-40
365 _b200
650 _aCivil Engg.
942 _cTB
999 _c290
_d290