Facts about the screwworm barrier program. 

 - [Washington]  U.S. Agricultural Research Service,  1967. 
 - 15 p.  illus.  26 cm. 
<br/><br/> Supersedes U.S. Agricultural Research Service. Facts about screwworm eradication, issued as ARS 91-39. 
<br/><br/><label>LCCN: </label>agr67000333  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Screwworm--Control.<br/>Cochliomyia hominivorax.<br/>Domestic animals--Pests.
<br/><br/><label>LC Class. No.: </label>S21  / .A85735 no. 64 
<br/><br/><label>National Agricultural Library Call No.: </label>A41.9R315Ar no. 64