TY  - BOOK
AU  - Brighton,A.G.
TI  - On some Cretaceous echinoids from Nigeria ..
T2  - Nigeria. Geological survey. Occasional paper,
AV  - QE783 
PY  - 1925///
CY  - London
PB  - [Waterlow & Sons, ltd.]
KW  - Sea-urchins, Fossil
N1  - At head of title: Geological Survey of Nigeria; "List of works": p. 20-21
ER  -