Black, John D.  1883-1960 <br/><br/>
Economics for agriculture :  selected writings / 
edited by James Pierce Calvin 
 - Cambridge Mass. :  Harvard University Press,  c1959 
 - 719 p. :  ill. ;  22 cm. 
 - Harvard economic studies ;  v. 111 .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 12.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Economic aspects
<br/><br/><label>Dewey Class. No.: </label>338.1081