TY  - BOOK
ED  -  Workshop on Clay Building Materials Industries in Africa 
ED  -  United Nations Industrial Development Organization.
TI  -  Clay building materials industries in Africa : : report
PY  - 1971///
CY  -  New York : 
PB  -  United Nations, 
KW  -  Clay industries
KW  -  Congresses
KW  -  Africa
KW  -  Brick trade
N1  -  At head of title: United Nations Industrial Development Organization , Vienna
ER  -