Biological control of vectors of diseases : sixth report of the WHO Expert Committee on Vector Biology and Control [meeting held in Geneva from 1 to 7 December 1981]. 

 - 39p. 
 - (WHO technical report series ; 679) .
<br/><br/><label>ISBN: </label>92-4-120679-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pest control, Biological<br/>Disease vectors