Placement
- contained in 11th Annual Edition: The Year's Best S-Fanthology
- contained in New Worlds: An Anthologyanthology
- contained in Stars of Albionanthology
- contained in The Mammoth Book of Time Travel SFanthology
- contained in The Time Traveller's Almanacanthology
- contained in The Traps of Timeanthology
- contained in Voyagers in Timeanthology
- contained in World's Best Science Fiction: 1966anthology