Clark, Colin. <br/><br/>
The economics of irrigation 

 - 2 ed. 
 - Oxford :  Pergamon Press,  1970 
 - 155 p. 
<br/><br/><label>LCCN: </label>60210 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigación--Costos.
<br/><br/><label>Dewey Class. No.: </label>631.75  / C5 1970