000 00388nam a2200121Ia 4500
008 160316s9999 xxu||||| |||| 00| 0 eng d
100 _aKamala A
245 _aEnvironmental engineering
260 _aNew Delhi
_bTMH
_c1989
300 _aVIII, 271p
650 _aBiotechnology
999 _c48181
_d48181