Ojala, E. M. <br/><br/>
Agriculture and economic progress / 
E. M. Ojala 
 - London :  Oxford University Press ,  1952 
 - vi, 220p. :  ill. ;  22 cm.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Economic aspects
<br/><br/><label>Dewey Class. No.: </label>630  / OJA