TY  - BOOK
AU  - Gozzard,J.R.
TI  - The sand and gravel resources of the country east and south-east of Darlington, Durham - Description of 1:25 000 sheet NZ 30 and 31
T2  - Exploration du Parc National Albert. Mission d'études vulcanologiques
PY  - 1982///
CY  - London
PB  - Institute of Geological Science
ER  -