Placement
- contained in Exploring the Horizons: Explorers, and the Furthest Horizonomnibus
- contained in Infinite Dreamscollection
- contained in The Best of Joe Haldemancollection
- contained in The Best Time Travel Stories of the 20th Centuryanthology
- contained in The Furthest Horizon: SF Adventures to the Far Futureanthology
- contained in Timegatesanthology