Placement
- contained in Eternity Lostcollection
- contained in Isaac Asimov Presents the Golden Years of Science Fiction: Sixth Seriesanthology
- contained in Selections from The Astounding Science Fiction Anthologyanthology
- contained in The Astounding Science Fiction Anthologyanthology
- contained in The Astounding Science Fiction Anthology (abridged)anthology
- contained in The Great Science Fiction Stories Volume 11, 1949anthology
- contained in The Second Astounding Science Fiction Anthologyanthology
- contained in The Shipshape Miracle and Other Storiescollection