Gregor, Howard F. <br/><br/>
Geography of agriculture; themes in research 

 - Englewood Cliffs :  Prentice-Hall,  1970 
 - 181 p.  : ilus 
<br/><br/><label>LCCN: </label>15252 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geografía agrícola.
<br/><br/><label>Dewey Class. No.: </label>631.5  / G7