Sri Lanka. Department of Agriculture Preadeniya <br/><br/>
Cost of cultivation of agricultural crops - Maha 1983/84. Vol. I - paddy 
Sri Lanka. Department of Agriculture Preadeniya 
 - Peradeniya  Department of Agriculture  1984 
 - 88 p. ; tables. 
 - Agricultural Economics Study  37 .
<br/><br/><label>Dewey Class. No.: </label>338.1  / SRI