Previous ed. published in one vol.: Sparkford : Patrick Stephens, 1996.
v. 1. Southern England and the Channel Islands.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Directory of British tramways by Keith Turner. ISBN 9780752439013. Published by Tempus in 2007. Publication and catalogue information, links to buy online and reader comments.
