Gregor, Howard F. <br/><br/>
Geography of agriculture :  themes in research / 
by Howard F. G regor. 
 - Englewood Cliffs :  Prentice-Hall,  1970. 
 - ix, 181 p. :  ill., maps ;  23 cm. 
 - Prentice-Hall foundations of economic geography series. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0133513203 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural geography.