Medieval colliery, Escomb (Escomb) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Page, W, Archibald Constable and Company Limited, Vellacott, C H, Dawsons of Pall Mall, University of London Institute of Historical Research, Louis, H, Gee, H | 1907 | The Victoria County History County Durham Volume II | p 321 |
| 2 | Hutchinson, W | 1785 to 1794 | The history and antiquities of the county Palatine of Durham Volumes I, II, and III | vol.3, p.342 |