Standard methods for the examination of water and wastewater. 
Prepared and published jointly by American Public Health Assoc., American Water Works Assoc. [and] Water Pollution Control Federation. 
 - 21st ed. 
 - Washington,  1976. 
 - xxxix, 1193 p.  illus.  24 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>0875530788 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Analysis.<br/>Water--Analysis.<br/>Sewage--analysis.<br/>Water Microbiology<br/>Water Pollution.<br/>Biologia Aquatica<br/>Tratamento E Qualidade Da Agua
<br/><br/><label>Dewey Class. No.: </label>628.1  / EAT