Agriculture in the twentieth century  : essays on research, practice and organization to be presented to Sir Daniel Hall 

 - Oxford :  Clarendon Press,  1939 
 - 440 p. 
<br/><br/><label>LCCN: </label>71019 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Gran Bretaña.
<br/><br/><label>Dewey Class. No.: </label>630.942  / A37