Black John D <br/><br/>
Economics of agriculture ed by James Pierce Carvin 
Black John D 
 -  1959 
 - Harvard economic studies, 111 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Industry
<br/><br/><label>Dewey Class. No.: </label>X9(J)z7, J9