Barnard Castle (County Durham) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | McDonald | 2002 | Landscape Analysis Barnard Castle | |
| 2 | Aerofilms Ltd, The Northern Echo | 24-Sep-1974 | Aerial photograph Barnard Castle | |
| 3 | North of England Civic Trust | May-2012 | Teesdale Heritage Audit | |
| 4 | Beck, S | 1720 | Thorngate, Barnard Castle, c.1720 | Sketch |