O'Barr William M Ed. <br/><br/>
Survey research in Africa,Its applications and limits 

 - Evanston  Northwestern University Press          1973 
 - x,349p  cm. 
<br/><br/> Bibliography P285-334 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Yb4.6.N7, L3