Standard methods for the examination of water and sewage 

 - 9th ed. 
 - New York  American Public Health Association, American Water Works Ass  1949 
 - xv, 286 p. 
<br/><br/><label>ISBN: </label>248597 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analitical chemistry
<br/><br/><label>Dewey Class. No.: </label>543  / STA