Heady, E.O. <br/><br/>
Agricultural Production Functions 

 - N.A. 
 - Ludhiyana  Kalyani Publications  2016 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Agricultural Production
<br/><br/><label>Dewey Class. No.: </label>338.1  / HEA