Heady Earl O <br/><br/>
Spatial sector programming models in agriculture 
Heady Earl O 
 - Ames  Iowa State University Press         1975 
 - xx, 484p.  cm. 
<br/><br/><label>ISBN: </label>0813815754 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture Labour
<br/><br/><label>Dewey Class. No.: </label>X9(J):(B288).73.N7, L5