Wad from
UK | |
| Render, Paul (n.d.) Paul Render Collection. |
Render, Paul (n.d.) Paul Render Collection. | |
| Render, Paul (n.d.) Paul Render Collection. |
| Render, Paul (n.d.) Paul Render Collection. |
| Mineralogical Magazine 1996 60 : 978-982. |
| Le Neve Foster, C. (1879): Transactions of the Royal Geological Society of Cornwall 10, 107-112 |
| P.M. Allen, A.A. Jackson: "Geological Excursions in the Harlech Dome", BGS, 1985 |
| Render, Paul (n.d.) Paul Render Collection. |