Population Growth and manpower in the Sudan :  joint study by the united nations and the government of the sudan / 

 - Newyork :  U N,  1987. 
 - 149p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Manpower
<br/><br/><label>Dewey Class. No.: </label>304.62  / POP/P