000			00375nam a22001457a 4500
020			_a0-07-1152234-2
082			_a628 _bDAV
100			_aDavis, Mackenzie L
245			_aIntroduction to environmental engineering _cDavis, Mackenzie L
250			_a3rd ed.
260			_aNew York, _bWCB Mcgraw-Hill _c1998.
300			_a919p.: _bill,; _c15 cm.
650			_aMCE
942			_cBK
999			_c8224 _d8224