The geology of parts of Niger and Zaria Provinces, Northern Nigeria : explanation of 1:250,000 sheet no. 31 /
Truswell, J. F.
Cope, Roderick Neville,joint author.
[Lagos],
1963.
In back pocket: Sheet 31: Kusheriki, scale 1:250,000.
Bibliography: p. 41.
Geology
Geology
Geology