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56 HVL 218/334B
BOUCOT, Arthur J.
Fossils of the Littleton Formation (Lower Devonian) of New Hampshire / by A.J.Boucot and Robert Arndt. -- Washington : US Government Printing Office, 1960. -- S.41-51, : obr. -- In: Geological Survey professional paper 334-B, 1960.. -- separát. -- bibl.
fossils - Littleton Formation - Lower Devon - New Hampshire
56
57401
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