Hull, R. <br/><br/>
Some virus diseases of sweet peas in England /    
R. Hull. 
 - Kent :   Wye College,   [n.d]. 
 - Various pagings :    ill. ;    25 cm. 
 - Reprint no.254 new series   .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sweet pease --Diseases and pests --England.----