000			00345nam a2200145Ia 4500
008			221117s9999 xx 000 0 und d
082			_bAHL
100			_aAHLUWALIA, POONAM
245		0	_aWATER AND WASTEWATER SYSTEMS
250			_a1ST
260			_bSK KATARIA & SONS, NEW DELHI _c2012
300			_a229
650			_aChemistry
942			_cBK
999			_c212875 _d212875