Christ, Wolfgang  <br/><br/>
Aspects of water pollution control :  a selection of papers prepared for the Conference on Water Pollution Problems in Europe, Geneva, 1961 / 
Wolfgang Christ...[et al.]. 
 - Geneva :   World Health Organization,  c 1962. 
 - 115 p . ;  ill. ;  22 cm. 
<br/><br/>331  331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water -- Pollution.<br/>Pollution
<br/><br/><label>Dewey Class. No.: </label>628.168 / G893a