TY  - BOOK
AU  - Simpson,A.
TI  - The Nigerian coalfield: the geology of parts of Onitsha, Owerri and Benue Provinces. 
AV  - TN810.N5 S5
PY  - 1954///
CY  - [Zaria]
PB  - Nigerian Govt.
KW  - Coal
KW  - Nigeria
KW  - Geology
ER  -