000			00390nam a22001457a 4500
999			_c7190 _d7190
008			200318b ||||| |||| 00| 0 eng d
020			_a9781260548020
100			_aMaster, S.J.
245			_aPrinciples of Environmental Engineering ans Science
250			_a4th ed.
260			_aNew York _bMcGraw Hill. _c2020
300			_axvi, 866p.
650			_aEnvironmental Engineering
942			_cBK