Irrigation operator's workshop 1969 lecture notes. / 
Department of the Interior Bureau of Reclamation. 
 - United States:   Department of the Interior Bureau of Reclamation;  1969. 
 - Various pages:  illustrations,graphs,charts,tables  28cm 
<br/><br/>Introduction Benefits and cost 
<br/><br/><br/>In English 
<br/><br/> Pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation operations<br/>Workshop
<br/><br/><label>Dewey Class. No.: </label>621.2 IRR 1969