Placement
- contained in ... And Some Were Humancollection
- contained in Isaac Asimov Presents The Golden Years of Science Fiction: 2nd Seriesanthology
- contained in Robots & Magiccollection
- contained in The Best of Lester del Reycollection
- contained in The Devils & Demons Megapackanthology
- contained in The Great Science Fiction Stories Volume 3, 1941anthology
- contained in Unknown Worlds: Tales from Beyondanthology