ORDOVICIAN { CARADOC } MARGINAL BASIN VOLCANISM IN SNOWDONIA { NORTH WEST WALES }.
London: Published by HMSO. 1991. 4to. pp.xii + 191.with colour and black & white photographs, maps, charts and diagrams. Original pictorial quality stiff card softcover wrappers. Spine a little faded else very good. Item #193045
Price: $75.00
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