Pfaffenberger, Gary S. <br/><br/>
Biosystematics of the first-stage larvae of some North American Bruchidae (Coleoptera) / 
Gary S. Pfaffenberger & Clarence D. Johnson 
 - Washington, D.C. :  USDA ,  1976 
 - 75p. :  ill. ;  26 cm. 
 - Technical bulletin .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural economics<br/>Insects--United States
<br/><br/><label>Dewey Class. No.: </label>632.7  / PFA