Yang, Wei,  1907- <br/><br/>
Methods of farm management investigations for improving farm productivity / 
Wei Yang. 
 - Rome :  Food and Agriculture Organization of the United Nations,  1962. 
 - ix, 228 p. :  diagrs., tables. ;  23 cm. 
 - FAO agricultural development paper,  no. 64 .
 - FAO agricultural development paper ;  no. 64. .
<br/><br/>Bibliography: p. 225-228. 
<br/><br/><label>LCCN: </label>60023680  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Farm management--Research.
<br/><br/><label>Dewey Class. No.: </label>631  / YAM 1962