Black, John Donald. <br/><br/>
Introduction to economics for agriculture 

 - New York :  MacNillan,  1953 
 - 727 p. 
<br/><br/><label>LCCN: </label>17697 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Aspectos económicos.
<br/><br/><label>Dewey Class. No.: </label>338.1  / B62i