Walker, W.R. <br/><br/>
Guidelines for designing and evaluating surface irrigation systems 
/ by W.r.Walker 
 - Rome  FAO  1989 
 - xi, 137 p.- 
 - FAO irrigation and drainage paper No. 45 .
<br/><br/> Includes references. 
<br/><br/><label>ISBN: </label>9251028796 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation systems
<br/><br/><label>Dewey Class. No.: </label>631.587  / WAL