App, Frank,  1886- <br/><br/>
Farm economics, management and distribution / 
Frank App and Allen G. Walley ; edited by R. W. Gregory 
 - Chicago :  J. B. Lipincott ,  1938 
 - 700 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label> Rs. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Agriculture--Economic aspects