Fernando, J.V., ed. Senanayake, Y. D. A., ed. <br/><br/>
Postgraduate institute of Agriculture : UNIVERSITY of PERADENIYA 
edited by Y. D. A. Senanayake, J.V. Fernando 
 - Kandy  Postgraduate institute of Agriculture  1988 
 - 16 p. 
<br/><br/><label>Dewey Class. No.: </label>16.63  / UNI