International conference on phosphorus and potassium in the tropics(1981:Kuala Lumpur)   <br/><br/>
Proceedings of the international conference on phosphorus and potassium in the tropics, held in Kuala Lumpur, 17-19 August 1981  (Book) 

 - Kuala Lumpur  Malaysian Society of Soil Science  1982 
 - 590 p.  25 cm. 
<br/><br/><label>Universal Decimal Class. No.: </label>631.83/.85 (061.3) PRO  / 13136