Warn, C. R.

• Geography of Production
• Railways of the Northumberland coalfield
• Rocks and scenery from Tyne to Tweed
• Buses i Northumberland and Durham
• Main line railways of Northumberland
• Rails across Northumberland
• Rails between Wear and Tyne
• Rural branch lines of Northumberland
• The Ordnance Survey map skills book
• Waggonways and early railways of Northumberland, 1605-1840 ..