Specifications for pesticides used in public health  insecticides - molluscicides - repellents methods 

 - 5th ed. 
 - Geneva  WHO  1979 
 - 327 p.  Illustration 
<br/><br/><label>ISBN: </label>9241541407 
<br/><br/><label>Dewey Class. No.: </label>363.7384  / S62