TY  - GEN
AU  - Smith,Bernard
ED  - Geological Survey of Great Britain
ED  - Museum of Practical Geology Great Britain
TI  - British regional geology : : North Wales 
AV  - QE193 
U1  - 554.29 
PY  - 1961///
CY  - London , 
PB  - H.M. Stationery Off.
KW  - Geology
KW  - Wales
N1  - At head of title: Dept. of Scientific and Industrial Research. Geological Survey and Museum; Bibliography: p. 89-96
ER  -