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

 - Ames :   Iowa State University Press,  1961. 
 - 667p.  : ill.   ; 24cm.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Economic aspects<br/>Mathematical models<br/>Farm management
<br/><br/><label>LC Class. No.: </label>ECO S561.H38