Barker, Paul C. <br/><br/>
A study of insects  : 4-H Entomology Project 

 - Berkeley, Ca. :  The University of California. Division of Agricultural Sciences,  1978 
 - 40 p.  : ilus. 
 - Leaflet  ; 2949 .
 - Leaflet  ; 2949 .
<br/><br/> 32-57 
<br/><br/><label>LCCN: </label>68909 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Entomología económica.<br/>Entomología sistemática.