Placement
- contained in Opus 100collection
- contained in Opus: A Selection from the First 200 Booksomnibus
- contained in The 6th Annual of the Year's Best S-Fanthology
- contained in The Asimov Chronicles: Fifty Years of Isaac Asimovcollection
- contained in The Asimov Chronicles: Fifty Years of Isaac Asimov!: Volume Fourcollection
- contained in The Asimov Chronicles: Fifty Years of Isaac Asimov: Volume Onecollection