Placement
- contained in First-Person Singularitiescollection
- contained in Humanity 2.0anthology
- contained in Infinite Starsanthology
- contained in Multiples: 1983-87collection
- contained in Secret Sharerscollection
- contained in The Robert Silverberg Science Fiction Megapackcollection
- contained in The Secret Sharercollection
- contained in The Universeanthology