Research into environmental pollution  report of five WHO scientific groups 
World Health Organization 
 - Geneva  World Health Organization  1968 
 - 83 s.  tbl.  24 cm. 
 - WHO Technical report series  no. 406 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--Research.
<br/><br/><label>Dewey Class. No.: </label>363.73 RES 1968