Standard methods for the examination of water and wastewater /  
prepared and published jointly by American Public Health Association, American Water Works Association, Water Pollution Control Federation ; joint editorial board, Michael J. Taras ... [et al.]. 
 - 13th ed. 
 - Washington, D.C. :   American Public Health Association,   1971. 
 - xxxv, 874 p. :   il. 
<br/><br/><label>ISBN: </label>0875530605 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Água--Análise.<br/>Águas residuais--Análise.
<br/><br/><label>Dewey Class. No.: </label>546.226