Synopsis
History
First publication: Worlds of Tomorrow, June 1963
Review
Videos
We have the story in these editions:
The Great SF Stories 25 (1963), edited by Isaac Asimov and Martin H. Greenberg, hardcover, DAW Books / SFBC, 1993-01-00
Worlds of Tomorrow, June 1963, edited by Frederik Pohl, magazine, Galaxy Publishing, 1963-06-00