Riddell, J. Barry. <br/><br/>
The spatial dynamics of modernization in Sierra Leone :  structure, diffusion, and response / 
J. Barry Riddell. 
 - Evanston :  Northwestern University Press,  1970. 
 - xii, 142 p. : 
<br/><br/><label>ISBN: </label>0810103095 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Migration, Internal
<br/><br/><label>Dewey Class. No.: </label>304.809664  / Sp