TY  - BOOK
AU  - Swinton WE
TI  - On fossil reptilia from Sokoto Province
U1  - 568.1(669) 
PY  - 1930///
CY  - London
PB  - Govt of Nigeria
KW  - Nigeria
KW  - Reptilia
N1  - Published in Bulletin of the Geological Survey of Nigeria 13
ER  -