Vol. 4 has title: A history of the county of Durham.
Vol. 4 published for the Institute of Historical Research by Boydell & Brewer.
v. 1. [without special title]
v. 2. [without special title]
v. 3. [without special title]
v. 4. Darlington / edited by Gillian Cookson
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
The Victoria history of the county of Durham. ISBN 1904356265. Published by Archibald Constable and Co. Ltd. in 1905. Publication and catalogue information, links to buy online and reader comments.
