Heady, Earl O Madsen, Howard C Mayer, Leo V <br/><br/>
Future farm programs  comparative costs and consequences 

 - Ames  Iowa state university press  1972 
 - viii, 411p.; 23cm. 
<br/><br/><label>ISBN: </label>813806755 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural productivity<br/>Agriculture- state - U S<br/>Land retirement programmes<br/>Linear programming<br/>Resource requirments<br/>Simulation methods