Varley, J.A.  <br/><br/>
Methods of leaf analysis(major and minor elements)  (Book) 

 - Kuala Lumpur  Harrisons and Crossfield  1966 
 - 59 p.  33 cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>631.427.3:581.192 VAR  / 5812