OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Service training manual [for] electrical equipment, instruments, cab - Bedford M, 4x4 by Vauxhall Motors Limited. ISBN 0901584088. Published by Vauxhall Motors Ltd in 1971. Publication and catalogue information, links to buy online and reader comments.
![Service training manual [for] electrical equipment, instruments, cab - Bedford M, 4x4](http://ecx.images-amazon.com/images/I/51x6GPD34AL._SL160_.jpg)