Yang, W. Y. <br/><br/>
Methods of farm management investigations for improving farm productivity / 
[Prepared by] W. Y. Yang. 
 - Revised Edition. 
 - Rome :  Food and Agriculture Organization of the United Nations,  c1965. 
 - xiii, 258 pages :  Illustrations ;  23 cm. 
 - FAO agricultural development paper ;  no. 80 .
 - FAO agricultural development paper ;  no. 80. .
<br/><br/><label>ISBN: </label>9251010161 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm management.