OPEN University of Sri Lanka <br/><br/>
Bachelor of science, BTU 2104 botany: principles of microbiology / 

 - Nugegoda  The Open University of Sri Lanka  1997 
 - 5v. (v.5-ix, 57 p.) 
<br/><br/><label>ISBN: </label>9552306280 
<br/><br/><label>Dewey Class. No.: </label>576  / OPE