Skold, Melvin D. <br/><br/>
Regional location of production of major field crops at alternative demand and price levels, 1975: a linear programming analysis / 
Melvin D. Skold, Earl O. Heady 
 - Washington, D.C. :  USDA,  1966 
 - iv, 63p. :  ill. ;  21 cm. 
 - Technical bulletin .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural economics<br/>Economic aspects<br/>Agriculture<br/>Mathematical models<br/>Field crops
<br/><br/><label>Dewey Class. No.: </label>630 Us  / US