Placement
- Psychotechnic League
- contained in Amazing Stories, Volume 67collection
- contained in Fantastic Stories Presents the Planet Stories Super Packanthology
- contained in Fantastic Stories Presents the Poul Anderson Super Packcollection
- contained in Space Odysseysanthology
- contained in Starshipcollection
- contained in The 11th Science Fiction Megapackanthology
- contained in The Complete Psychotechnic League: Volume 2collection