Clay building materials industries in Africa /
- New York : United Nations, 1971.
- v, 24 p. ; 24 cm.
- [United Nations. Document] ID/71; (ID/WG.81/27) .
"United Nations publication. Sales no.: E.71.II.B.24." At head of title: United Nations Industrial Development Organization, Vienna. "Including a summary of lectures presented to the workshop."
72171884
Clay industries--Congresses.--Africa
Brick trade--Congresses.--Africa
JX1977 HD9598.A1 / .A2 ID/71
691 / UNC
"United Nations publication. Sales no.: E.71.II.B.24." At head of title: United Nations Industrial Development Organization, Vienna. "Including a summary of lectures presented to the workshop."
72171884
Clay industries--Congresses.--Africa
Brick trade--Congresses.--Africa
JX1977 HD9598.A1 / .A2 ID/71
691 / UNC