Roberts, J.B. <br/><br/>
Effect of gibberellic acid on the growth of hops  /    
J. B. Roberts and R. Stevens. 
 - Kent :   Wye College,   [n.d]. 
 - v.  ;    25 cm. 
 - Reprint No. 206   .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hops--------<br/>Gibberellic acid--------