Geology of the country between Durham and West Hartlepool (explanation of one-inch geological sheet 27, new series)
Denys B. Smith (Denys Barker) E.A Francis; Michael Anthony Calver; Natural Environment Research Council Institute of Geological Sciences
London Her Majesty's Stationary Office 1967
Localização: IGC - Instituto de Geociências (554.2 S645g )(Acessar)