000			00349nam a2200157Ia 4500
005			20250425160858.0
008			250425s9999 xx 000 0 und d
041			_aeng
082			_a540.2
245		0	_aCHEMISTRY FOR SANITARY ENGINEERS
250			_aS.E.
260			_aS.L.
260			_aSin Pais _bMCGH _c1960
942			_c01
010			_a7468
999			_c198048 _d198048