Lee,C.K.  <br/><br/>
Variation in yield and dry rubber content in modern Hevea clones  (Thesis) 

 -  1974 
 - 202p.  25cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>678.031.6 : 631.557 : 633.91 LEE/63B  / 7764