Directory of water pollution research laboratories. 

 - 519 pages ;  24 cm 
<br/><br/> Issued also in French. 
<br/><br/><label>LCCN: </label>72220372  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution--Research--Directories
<br/><br/><label>LC Class. No.: </label>TD424.5  / .O74 1965