00901nam0-22003251i-450-99000396757040332120081209132723.0000396757FED01000396757(Aleph)000396757FED0100039675720030930d1966----km-y0itay50------baengUSa-------001yyWater purification controlEdward Scott Hopkins, Elwood L. Bean4th ed.BaltimoreWilliams & Wilkins1966XII, 332 p.ill.24 cmAcque potabili546.2220itaHopkins,Edward Scott149395Bean,Elwood L.149396ITUNINARICAUNIMARCBK99000396757040332115 M/2-36DINIDDINIDWater purification control512624UNINA