Barnard Castle (County Durham) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | McDonald | 2002 | Landscape Analysis Barnard Castle | |
| 2 | Aerofilms Ltd | 24-Sep-2011 | AERIAL PHOTOGRAPH BARNARD CASTLE SEPT 74 | |
| 3 | North of England Civic Trust | May-2012 | Teesdale Heritage Audit |