Olf, Hans. <br/><br/>
Socio-economic survey in the Mumbwa District, Central Province :  second interim report. 

 - [Lusaka] :  University of Zambia [Institute for Social Research],  1966. 
<br/><br/> Photocopy. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mumbwa District (Zambia)<br/>Zambia -- Social conditions.--Zambia -- Social conditions.<br/>Zambia -- Economic conditions.--Zambia -- Economic conditions.