000 00326nam a2200145Ia 4500
008 220105s9999 xx 000 0 und d
041 _aENGLISH
082 _a365.5
100 _a"Duggal, K. N."
245 0 _aElements of Environmental Engineering
250 _n1
260 _bS.Chand
365 _b360.00
942 _cBK
999 _c209279
_d209279