Blanc, Robert. <br/><br/>
Manuel de recherche : 

 - [Londres:  Commission de cooperation technique en Afrique au Sud d u Sahara,  1959] 
 - 151 p. :  diagrs., tables.;  25 cm. 
<br/><br/>Includes bibliographical references (p. [149]- 150) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography.
<br/><br/><label>Dewey Class. No.: </label>312 BLA