Distribution maps of insect pests :  Series A. 

 - London :  [s.n.],  1951- 
 - no. in v. :  ill.;  19 x 30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects, injurious and beneficial--Maps.
<br/><br/><label>Dewey Class. No.: </label>632.7