Originally published: United States : Avon Books, 1970.
"A Gollancz eBook."
Originally a four volume series of science fiction stories published between 1950 and 1962 and since 1970 published primarily in an omnibus volume. The fourth volume 'The triumph of time' was published in Great Britain as 'A clash of cymbals.
Cities in flight by James Blish. ISBN 9781473202887. Published by Gateway in 2013. Publication and catalogue information, links to buy online and reader comments.