Heady, Earl O. <br/><br/>
Agricultural production functions / 
Earl O. Heady & John L. Dillon 
 - Ames :  Iowa State University Press ,  1961 
 - viii, 667p. ;  ill. ;  23 cm.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural research<br/>Farm management<br/>Economic aspects<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>630.73  / HEA