Report of the meeting of African experts on building materials 
by United Nations Economic Commission for Africa (UN-ECA) 
 - Addis Ababa  UNITED NATIONS ECONOMIC COMMISSION FOR AFRICA(UNECA)  1978 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BUILDING MATERIALS--AFRICA--CONGRESSES
<br/><br/><label>LC Class. No.: </label>UN-ECA(02)