Cassop (County Durham) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Smith, M | 2004 | Advanced Landscape Methods The historical study of a County Durham parish - Cassop-Cum-Quarrrington | |
| 2 | English Heritage, Chris Blandford Associates, Oxford Archaeology Unit, South Eastern Archaeological Services | Oct-1993 | Historic Landscapes Project Pilot 2: The identification of Historic Landscapes in Durham |