Ponrajah, A.J.P. <br/><br/>
Design of irrigation headworks 

 - Irrigation Department  Colombo  1982 
 - 96p.  fig. 
<br/><br/><label>Nat. Bib. No.: </label>7419 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>626.12  / PON