Ruttan Vernon W <br/><br/>
Economic demand for irrigated acreage  New methodol    

 -  1965 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engneering
<br/><br/><label>Dewey Class. No.: </label>X9(D2):27.73.N54<--N80, K5