Riddell, J. Barry. <br/><br/>
The spatial dynamics of modernization in Sierra Leone: structure, di ffusion, and response 
[by] J. Barry Riddell. 
 - Evanston :,  Northwestern University Press,  1970. 
 - xii, 142 p. :  maps ;  26 cm. 
<br/><br/>Includes bibliographical references (p. 133-139). 
<br/><br/><label>ISBN: </label>0810103095 
<br/><br/><label>LCCN: </label>75-108134 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Migration, Internal--Sierra Leone.<br/>Space in economics.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Sierra Leone--Economic conditions--1961-
<br/><br/><label>Dewey Class. No.: </label>330.664 RID