Transactions of the Royal Geological Society of Cornwall, Vol 10, p63 - 69
| Pleistocene Notes on the Cornish Coast between Plymouth & Looe, W A E Ussher, X: 63-69, 1880. |
| Pleistocene Notes on the Cornish Coast between Plymouth & Looe, W A E Ussher, X: 63-69, 1880. |