The Ordovician graptolites of the Shelve district, Shropshire
Strachan, Isles
Article
1986
Bulletin of the British Museum (Natural History) Geology
40
1--58
BioStor
English
London, BM(NH),
BioStor: https://biostor.org/reference/118593
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http://creativecommons.org/licenses/by-nc-sa/4.0/
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