Annual report for the year ... /
Nigerian Coal Corporation.
Lagos : Nigerian Coal Corporation,
[1952-
Report year ends 31st March.
Suspended: 1967-1970.
Nigerian Coal Corporation
Mineral industries
Mines and mineral resources
Annual report of the Enugu Colliery Board for the period 1st April-31st Dec., ... and the Nigerian Coal Corporation for the period 1st Jan.-31st March ...