000			00341nam a2200133Ia 4500
005			20260224041020.0
008			260224s9999||||xx |||||||||||||| ||und||
082			_a628 RAO
100			_aVenugopala, P.
245		0	_aTextbook of environmental engineering
260			_aNew Delhi: Prentice-Hall of India _c2002
300			_a268
942			_cBK
999			_c4376 _d4376