Subcommission on Devonian Stratigraphy : fossil groups important for boundary definition /
Subcommission on Devonian Stratigraphy : fossil groups important for boundary definition /
P. Bultynck (editor) ; International Union of Geological Sciences Subcommission on Devonian Stratigraphy.
- Frankfurt a.M. : Senckenbergische Naturforschende Gesellschaft, 2000.
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