International Management and Crop Diversification 

 - International irrigation management institute  Colombo  1990 
 - 51p. 
<br/><br/><label>Nat. Bib. No.: </label>6545 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>626.8  / IRR