Cities in Flight

From Author Wars - https://authorwars.com/publications/cities-in-flight-182277.html

Overview:

Title: Cities in Flight
Author: James Blish
Year: 1973
Publisher: Nelson Doubleday / SFBC
Price: $3.50
Pages: 593
Binding: Hardcover
Type: Omnibus
Title Reference: The Triumph of Time
Notes: First hardcover edition (not stated). Gutter code "03O" on page [595] indicates a January '73 printing. Reprinted in the same month with gutter code "04O" and printed in June with code "23P" (verified). Main selection for Feb. 1973 for Science Fiction Book Club, according to the "Things to Come" advertising pamphlet.