00626cam a22002297a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001600102100001900118245008700137260003100224300002000255650002700275650002400302650002700326650002400353700001900377CHAP20220329140523.0971013s1974            r     00010     d  a53250  a54222  a58373  cCHAP  a628.53bR6800aRothenberg, J.14aThe management of water quality and the environmentb: proceedings of a conference  aLondon :bMacMillan,c1974  a305 p.b; mapas14aAguaxContaminación.14aAguaxPurificacion.14aAirexContaminación.14aAirexPurificacion.0 aHeggie, Ian G.