Cover image not available
'This book contains the proceedings of a conference organised by the Advanced Programming Study Group of the British Computer Society in January 1974 ...' -p.1.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Job control languages, past, present and future. ISBN 0850121191. Published by NCC Publications in 1974. Publication and catalogue information, links to buy online and reader comments.