The lower palaeozoic of the northern Welsh borderland and South Wales
By: David J. Siveter.
Contributors: Siveter, David J.; Thames Polytechnic. School of Earth Sciences.; British Micropalaeontological Society.
Series: British Micropalaeontological Society Field Guide -- No. 2
Publisher: Thames Polytechnic
Published: 1988
Place of publication: [London]
Language: eng