Placement
- contained in Analog Anthologyanthology
- contained in Analog: The Best of Science Fictionanthology
- contained in Beyond the Barriers of Space and Timeanthology
- contained in Prologue to Analoganthology
- contained in The Alternate Asimovscollection
- contained in The Edge of Tomorrowcollection
- contained in The Winds of Change and Other Storiescollection
- contained in Through a Glass, Clearlycollection