'This forest record and the related leaflet no.54, "The control of Dutch elm disease" (H.M.S.O. revised 1974 ...) take the place of the former leaflet 19, "Dutch elm disease", now discontinued' - note.
Biology of Dutch elm disease by John Newton Gibbs. ISBN 0117101648. Published by H.M.S.O. in 1974. Publication and catalogue information, links to buy online and reader comments.