Yang, W.Y. <br/><br/>
Methods of farm management investigations for improving farm productivity / 
W.Y. Yang 
 - Rome :      FAO ,  1962 
 - ix, 228p. :   ill. ;  23 cm. 
 - FAO agricultural development paper    Also Revised edition, 1965 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Farm management research<br/>Farm management
<br/><br/><label>Dewey Class. No.: </label>631  / FAO-3