MISSION OF GRAVITY. New York: Pyramid Books, . Small octavo, pictorial wrappers. First paperback edition. Pyramid Books F-786. First in the author's Mesklin series, an adventure story set on a world with seas of frozen methane, snow of frozen ammonia, and a gravity of 700 Gs. Anatomy of Wonder (2004) II-260. Pringle, Science Fiction: The 100 Best Novels 15. Survey of Science Fiction Literature III, pp. 1424-28. Slight spine roll, else a fine, unread copy. Cover art by Emsh. (#143851).
"Pyramid edition published October 1962" on copyright page.