000 nam a22 7a 4500
999 _c456
_d456
003 OSt
005 20180526114709.0
008 180526b xxu||||| |||| 00| 0 eng d
082 _a574
_bDHA
100 _aDhaliwal, G.S.
110 _aSangha, G.S.
111 _aRalhan, P.K.
245 _aFundamentals Of Environmental Science /
_cBy G. S. Dhaliwal, G.S. Sangha And P.K. Ralhan.
260 _aNew Delhi :
_bKalyani Publishers ;
_c1996.
300 _a374 p.,
_c23 cm.
942 _2ddc
_cBK