British regional geology: Bristol and Gloucester district, 2026-02-16T05:22:33+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Welch, F. B. A. (Francis Bryan Awburn); Kellaway, G. A. (H.M. Stationery Off., 1935)