Earl O. Heady <br/><br/>
Agricultural production functions 

 - Iowa  Iowa State University Press  1960 
 - 667p 
<br/><br/>Earl O. Heady & John L. Dillon: Agricultural production functions.  Iowa.  Iowa State University Press, 1960.--(338.1HEA)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>338.1  / HEA