The Lower Devonian Flora of the Senni Beds of Monmouthshire and Breconshire
| Autor: | Croft, W. N., Lang, W. H. |
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| Zdroj: | Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 1942 Jun . 231(579), 131-163. |
| Databáze: | JSTOR Journals |
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