Wain, R.L. <br/><br/>
Plant growth substances  /    
R. L. Wain. 
 - Kent :   Wye College,   [n.d]. 
 - v.  ;    25 cm. 
 - Reprint No. 188   .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Growth (Plants)--------