RNames - Reference
| First Author | GutiƩrrez-Marco, J. C. et al. |
|---|---|
| Year | 1999 |
| Title | A biostratigraphical review of the Middle Ordovician shales from NW Spain (Cantabrian and Westasturian-Leonese zones, and northernmost part of the Central Iberian Zone) |
| DOI | |
| Link | https://www.zotero.org/groups/rnames/items/itemKey/J2ZAZ4K4 |