000 00316nam a2200121Ia 4500
008 191201s2012 xx 000 0 und d
100 _aDESWAL, S
245 0 _aIntroducation to Environmental Science
260 _c2012
_bDhanpat Rai Pubns (P) Ltd
_aN.Delhi
300 _amisc
650 _aAPPLIED
942 _2ddc
_cBB
_04
999 _c7537
_d7537