Sri Lanka. Department of Agriculture <br/><br/>
Cost of cultivation of agricultural crops, 2007 / 08 Maha 
Sri Lanka. Department of Agriculture 
 - Peradeniya  Department of Agriculture  2009 
 - pbk. : xi, 93 p. : digs., tables ; 20.5 cm 
<br/><br/> cg 
<br/><br/><label>ISBN: </label>18001041 
<br/><br/><label>Dewey Class. No.: </label>338.1  / SRI