The Wenlock graptolites of the Ludlow district, Shropshire, and their stratigraphical significance
Holland, C H Rickards, R B Warren, P. T. (Peter Tolman)
Article
1969
Palaeontology
12
663--683
BioStor
English
London, Palaeontological Association, 1957-
BioStor: https://biostor.org/reference/164915
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