Water Operation And Maintenance Bulletin No.97: Equipment for the Prevention, Control, and Disposal of Weeds on Irrigation Project 

 - USBR  1976 
 - p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>IRRIGATION.<br/>IRRIG.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>U.S.A., California.