Yang, W Y <br/><br/>
Methods of farm mangement investigations for improving farm productivity 

 - 
 - Food & agriculture organizations of the United States  1958 
 - 
 - .
<br/><br/>  
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural economics
<br/><br/><label>Dewey Class. No.: </label>338.1  YAN-M