Gahan, A. B. <br/><br/>
Aphidiinae of North America  / 
A. B. Gahan 
 - College Park  :   Maryland Agricultural College 
 - p. 147-200 
 - Maryland Agr. Exp. Sta. Bull; 152 .
<br/><br/><label>LCCN: </label>203441 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Afídidos -- EUA.