Nil <br/><br/>
Manual of Standard and Criteria for Planning Water Resource Projects 

 -  1964  United Nations New York 
 - 1-53  0  Paper 
<br/><br/> Hard Binding 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil & Water Conservation
<br/><br/><label>Dewey Class. No.: </label>DT21      K4