Johnson, Tom. <br/><br/>
A vanishing hole?:population, fertility and venereal disease among the Ila of Northern Rhodesia, 1900-1960. 

 - Lusaka :  s.n.,  1995. 
<br/><br/> Examines the incidence of venereal diseases among the Ila and the relationship between population growth, food supply and economic change. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.<br/>Illa -- Northern Rhodesia -- Fertiltiy -- Venereal diseases/.--Illa -- Northern Rhodesia -- Fertiltiy -- Venereal diseases/.--Illa -- Northern Rhodesia -- Fertiltiy -- Venereal diseases/.--Illa -- Northern Rhodesia -- Fertiltiy -- Venereal diseases/.