Agricultural mechanization :    irrigation by canals and sprinklers. 

 - New York :    United Nations,    1962. 
 - 56 p. ;    28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Sprinkler irrigation.<br/> Irrigation canals and flumes.