000			00351nam a2200133Ia 4500
008			240112s9999 xx 000 0 und d
082			_aRAO-P _b574.5
100			_aRao, Venugopala, P
245		0	_aPrinciples of environmental science and engineering
260			_bCengage Learning _c2012
300			_a452
650			_aEcology; Biology
942			_cBK
999			_c38778 _d38778