Barnes,H.F. <br/><br/>
Gall Midges of Economic Importance 

 - London  Crosby Lockwood &sas  1948 
 - 184 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture Economic,Horticulture Economic
<br/><br/><label>Dewey Class. No.: </label>632.7  / B26G