Louisville, KY: Fawcett Publications, Inc., 1945. Octavo, single issue cover painting by Chesley Bonestell, pictorial wrappers. First edition. Includes an illustrated sixteen page article by Willy Ley, "Rocket To The Moon?" It also feature a number of paintings by Chesley Bonestell.

New York: Random House, 1952. Octavo, cloth. First edition. "Zany, action packed, Joycean in style, Limbo is formally and conceptually complex and unremittingly analytical, both politically and psychologically." - David N. Samuelson/Curtis C. Smith (ed.): 20th Century Science Fiction Writers, p. 595. [Reference: Anatomy of Wonder 3-404. Pringle, Science Fiction: The 100 Best Novels #6].