000 00282nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a577.14
100 _aMarrimuthu V M
245 0 _aEnvironmental engineering
250 _a4
260 _bPratheeba Publishers
_c2002
942 _cBK
999 _c1272
_d1272