TY  - BOOK
AU  - United Nation/ Economic Commission for Africa
TI  - Development of lead and zinc resources in Africa
PY  - 1991///
CY  - Addis Ababa
PB  -  Economic Commission for Africa
KW  - mineral industries
KW  - Africa
KW  - Lead industry and trade
KW  - Zinc industry and trade
KW  - Lead
KW  - manufacture
ER  -