'Based on the original research and observations of Andrew Darwin and Paul Atterbury' - title page versos. - In 5 vols.
Previous ed.: London : British Waterways Board, 1972.
Bibliography: p.68-69. _ Includes index.
Nicholson's guides to the waterways. 2, North west. ISBN 0905522028. Published by R. Nicholson in 1978. Publication and catalogue information, links to buy online and reader comments.