Proceeding on British crop protection Pests and diseases 

 - London  BCPC           1981 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>53169 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Plant virus<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J:423p1,N81, M1.1-.3