OPEN Univeristy of Sri Lanka <br/><br/>
Course of study leading to the degree of bachelor of science-level five-botany P 

 - Nugegoda  The Open University of Sri Lanka  1991 
 - 78 p. 
<br/><br/><label>ISBN: </label>169001 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant pathology
<br/><br/><label>Dewey Class. No.: </label>580  / OPE