Zin Zawawi bin Zakaria   <br/><br/>
Extractable minerals in nine Malaysian soils and their effect on the mineral contents of four Hevea clones  (Thesis) 

 -  1979 
 - 177p.  28cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>631.81:631.41:633.912.11 ZIN / 174C  / 8961