Demographic, socioeconomic and health situation in the African region :  reference data at 1 July 1973 : results of a survey /  reference data at 1 July 1973 : results of a survey / 

 - Brazzaville :  Regional Office for Africa, World Health Organization,   1974. 
<br/><br/> "AFR/VHS/53."  "11 April 1974." 
<br/><br/>Includes bibliographical footnotes.