Foottit, Robert G. <br/><br/>
The genera of the aphids of Canada Homoptera  : aphidoidea and Phylloxeroidea 

 - Ottawa :  Agriculture Canada,  1993 
 - 766 p.  : ilus. 
 - The insects and arachnids of Canada  ; 22 .
 - The insects and arachnids of Canada  ; 22 .
<br/><br/><label>LCCN: </label>40585 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Afídidos.<br/>Insectos--Canadá.
<br/><br/><label>Dewey Class. No.: </label>595.7  / I56 v.22