Ellis M M <br/><br/>
Determination of water quality 

 -  1948 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>64342 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water engineering
<br/><br/><label>Dewey Class. No.: </label>D85530K, H8              CS