Black, John D.  1883-1960. <br/><br/>
Economics for agriculture :  selected writings. /  
Edited by James Pierce Calvin, with introductory essays. 
 - Cambridge :  Harvard University Press,  c1959. 
 - xi, 719 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliography and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Economic aspects
<br/><br/><label>Dewey Class. No.: </label>23  / BLE 1963