Yemen, A.P.R. <br/><br/>
Spate irrigation 

 - UNDP and FAO  1987 
 - 180p.  fig., table 
<br/><br/><label>Nat. Bib. No.: </label>6550 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>627.512  / YEM