Synopsis
History
First publication: Amazing, April 1962
Review
Videos
We have the story in these editions:
The Great SF Stories 24 (1962), edited by Isaac Asimov and Martin H. Greenberg, paperback, DAW Books, 1992-01-00
Amazing Stories, April 1962, edited by Cele Goldsmith, magazine, Ziff-Davis Publishing Company, 1962-04-00