000 00294cam a22001097a 4500
008 180718b1993 xxu||||| |||| 00| 0 eng d
020 _a0706970543
100 _aDhyani, S.N.
245 _aManagement of environmental hazards
_cby S.N. Dhyani
260 _aNew Delhi
_bVikas
_c1993
300 _a318p.
999 _c375726
_d375726