INTERNATIONAL COMMISSION ON IRRIGATION AND DRAINAGE <br/><br/>
Sixth Congress on Irrigation and Drainage 

 -  1966  NIL 
 - 1-132  0  Paper 
<br/><br/> Hard Binding 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil & Water Conservation
<br/><br/><label>Dewey Class. No.: </label>DT3        L6