000			00335nam a2200133Ia 4500
008			161018s9999 xx 000 0 und d
020			_a9788131723265
100			_aMasters,Gm And Ela,Wp. _99911
245			_aIntroduction To Environmental Engineering.
250			_a3Ed
260			_bPearson
300			_a708p. _bRs:299
490			_a7264
999			_c7264 _d7264