000 00304nam a2200121Ia 4500
008 211209s2008 xx 000 0 und d
020 _a8122422375
041 _aeng
100 _aGAUR R.C
245 _aEVIRONMENTAL ENGINEEERING LABORATORY MANUAL
260 _aNEW DELHI
_bNEW AGE
_c2008
300 _aV, 49
999 _c58957
_d58957