"A substantial part of this work was published in 1987 as A guide to the Ordnance Survey one-inch New Popular Edition and Scottish Popular Edition with National Grid, with a second edition in 1989" - T.p. verso.
A guide to the Ordnance Survey one-inch New popular edition by Richard R. Oliver. ISBN 1870598180. Published by The Charles Close Society for the study of Ordnance Survey maps in 2000. Publication and catalogue information, links to buy online and reader comments.