000			00428nam a2200145Ia 4500
008			170101s2006 xx 000 0 und d
082			_a363.7 V46P
100			_aVenugopala Rao, P.
245		0	_aPrinciples of environmental science and engineering
260			_aNew Delhi _bPrentice-Hall of India _c2006
300			_a276p. : 24cm.
650			_aENVIRONMENTAL SCIENCE
653			_aENVIRONMENTAL SCIENCE
942			_2ddc _cB _01
999			_c138862 _d138862