ANNUAL Congress of the Postgraduate Institute of Agriculture (2nd: Peradeniya: 1990) <br/><br/>
Tropical agricultural research / 
8th-9th November 1990; edited by Raphel O. Thattil 
 - Peradeniya  Postgraduate Institute of Agriculture  1990 
 - i, 315 p. 
<br/><br/><label>Dewey Class. No.: </label>630.913072  / ANN