000 00326nam a2200133Ia 4500
082 _a577.14
_bGUP
100 _aAgarwal , R.K.
245 _aEnvironment and Ecology
260 _aMeerut
_bKrishna Prakashan Media (p)
_c2010
300 _a224p.
650 _aApplied Sc.
650 _aEnvironmental Science
700 _aSangal,V.K.
999 _c4979
_d4979