Nitrate and water supply :  Source and control, proceedings / 
Ed. by verne snoeyink, technical editor, Virginia griffin, editor. 
 - 195 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ingenieria sanitaria--Congresos<br/>Abastecimiento de agua--Congresos
<br/><br/><label>LC Class. No.: </label>TD5  / E57