Tropical Agricultural Research 

 - Postgraduate Institute of Agriculture, University of Peradeniya  Peradeniya  1995 
 - 295p.  fig. 
 - Volume  7 .
<br/><br/><label>Nat. Bib. No.: </label>6061 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631  / TRO