Commonwealth Agricultural Bureaux <br/><br/>
Review of the biological control attempts against insects and weeds in Canada  

 - Bucks  Commonwealth Agricultural Bureaux  1962 
 - 216p 
 -  Part 2 .
<br/><br/>Commonwealth Agricultural Bureaux: Review of the biological control attempts against insects and weeds in Canada.  Bucks.  Commonwealth Agricultural Bureaux, 1962.--(632.96COM)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>632.96  / CAB