TY  - BOOK
AU  - Welch,Francis Bryan Awburn
AU  - Crookall,Robert
AU  - Kellaway,G.A.
ED  - London. 
TI  - British regional geology : : Bristol and Gloucester district / 
U1  - 554.2 WEL 
PY  - 1948///
CY  - London : 
PB  - H. M. Stationery Office, 
KW  - Geology
KW  - England, Gloucestershire
KW  - England, Somerst
KW  -  Great Britain.
KW  -  Geological Survey
N1  -  At head of title: Department of Scientific and Industrial Research. Geological Survey and Museum;  "Maps & publications dealing with the region: p. 97-99
ER  -