Yang, W. Y. <br/><br/>
Methods of farm management investigations for improving farm productivity / 
prepared by W.Y. Yang. 
 - Rev. ed. 
 - Rome :  FAO,  1965. 
 - xiii, 258 p. ;  23 cm. 
 - FAO agricultural development paper ;  no. 80. FAO agriculture series ;  no. 11 .
<br/><br/> 4th printing 1980. 
<br/><br/>Bibliography: p. 254-258. 
<br/><br/>
<br/><br/><label>ISBN: </label>9251010161 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm management--Research.
<br/><br/><label>Dewey Class. No.: </label>630.68  / Y22