Austen, Ralph A. <br/><br/>
Middlemen of the Cameroon Rivers : The Duala and Their Hinterland, c.1600 - c.1960 
Austen, Ralph A. 
 -  Cambridge University Press  1999 
 - On-campus e-Book by ebrary under Digital Library Program of Higher Education Commission (HEC) of Pakistan 
<br/><br/><label>ISBN: </label>9781139145619     
<br/><br/><label>Subjects--Topical Terms: </label><br/>History