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008 210723s9999||||xx |||||||||||||| ||und||
020 _a81-7169-177-3
035 _a32279
082 _a910.0923
_BSIN / SET / SHE
100 _aSingh, Gurcharan / Sethi, Inderjeet Kaur / Shethi, M. S.
245 0 _aTopics & Temrs In Environmental Science (vol 2 )
250 _a1st
260 _aN. Delhi
_bCommonwealth Publishers
300 _a672
500 _a3451
650 _a-
942 _cBK
999 _c33110
_d33110