Water quality assessments :  a guide to the use of biota, sediments and water in environmental monitoring / 
Deborah Chapman, editor 
 - xxi, 636 p. :  il. ;  24 cm. 
<br/><br/> Published on behalf of UNESCO, United Nations Educational, Scientific, and Cultural Organization, WHO, World Health Organization, UNEP, United Nations Environment Programme. \ 
<br/><br/>Incluye referencias bibliográficas e índice 
<br/><br/><label>ISBN: </label>0419215905 (hbk) 0419216006 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CALIDAD DEL AGUA--MEDICION
<br/><br/><label>Dewey Class. No.: </label>628.162  / W3 1996