Heady Earl O <br/><br/>
Agriculture production functions 

 - Ames  Iowa State University Press         1961 
 - viii, 667p  cm. 
<br/><br/> Bib p 645-63 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture Industry
<br/><br/><label>Dewey Class. No.: </label>X9(J):2, K1/TD