Bear Trap Gates for Irrigation Part I 

 - DID  [date of publication not identified] 
 - p. 
<br/><br/> DID Research Station Memorandum No. 2 of 1955 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IRRIGATION.<br/>IRRIG.<br/>STRUCTURES.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>MALAYSIA.