New directions in mineral development policies report of an international workshop held at Bagauda, near Kano, Nigeia, 8-10 September 1975
prepared by D. J. C. Laming and D. E. Ajakaiye
- St. Johns Newfoundland Association of Geoscientists for International Development 1977
- viii, 224p. ill, 25cm
Mines and mineral resources
Mines and mineral resources--Developing Countries
Mines and mineral resources
Mines and mineral resources--Developing Countries